Quran and other heavenly books

Although heavenly religions have so many commonalities in principles of beliefs and divine trains, only accepted rule is Islam from point of view of Quran because mission of the prophet ended and he used Quran;
انَّ الدِّينَ عِندَ اللَّهِ الْإِسْلَامُ ۗ وَمَا اخْتَلَفَ الَّذِينَ أُوتُوا الْكِتَابَ إِلَّا مِن بَعْدِ مَا جَاءَهُمُ الْعِلْمُ بَغْيًا بَيْنَهُمْ ۗ وَمَن يَكْفُرْ بِآيَاتِ اللَّهِ فَإِنَّ اللَّهَ سَرِيعُ الْحِسَابِ
The Religion before Allah is Islam (submission to His Will): Nor did the People of the Book dissent therefrom except through envy of each other, after knowledge had come to them. But if any deny the Signs of Allah, Allah is swift in calling to account.
Validity of previous heavenly books does not limit only to time, place and their special disciples in certain time.
Of course, in general meaning of Quran, the word '' Islam'' is a name for common religion of all divine prophets;
فَإِن تَوَلَّيْتُمْ فَمَا سَأَلْتُكُم مِّنْ أَجْرٍ ۖ إِنْ أَجْرِيَ إِلَّا عَلَى اللَّهِ ۖ وَأُمِرْتُ أَنْ أَكُونَ مِنَ الْمُسْلِمِينَ
But if ye turn back, (consider): no reward have I asked of you: my reward is only due from Allah, and I have been commanded to be of those who submit to Allah´s will (in Islam).
وَقَالَ مُوسَىٰ يَا قَوْمِ إِن كُنتُمْ آمَنتُم بِاللَّهِ فَعَلَيْهِ تَوَكَّلُوا إِن كُنتُم مُّسْلِمِينَ
Moses said: "O my people! If ye do (really) believe in Allah, then in Him put your trust if ye submit (your will to His).
وَوَصَّىٰ بِهَا إِبْرَاهِيمُ بَنِيهِ وَيَعْقُوبُ يَا بَنِيَّ إِنَّ اللَّهَ اصْطَفَىٰ لَكُمُ الدِّينَ فَلَا تَمُوتُنَّ إِلَّا وَأَنتُم مُّسْلِمُونَ
And this was the legacy that Abraham left to his sons, and so did Jacob; "Oh my sons! Allah hath chosen the Faith for you; then die not except in the Faith of Islam.
فَلَمَّا أَحَسَّ عِيسَىٰ مِنْهُمُ الْكُفْرَ قَالَ مَنْ أَنصَارِي إِلَى اللَّهِ ۖ قَالَ الْحَوَارِيُّونَ نَحْنُ أَنصَارُ اللَّهِ آمَنَّا بِاللَّهِ وَاشْهَدْ بِأَنَّا مُسْلِمُونَ
When Jesus found Unbelief on their part He said: "Who will be My helpers to (the work of) Allah?" Said the disciples: "We are Allah´s helpers: We believe in Allah, and do thou bear witness that we are Muslims.
وَإِذَا يُتْلَىٰ عَلَيْهِمْ قَالُوا آمَنَّا بِهِ إِنَّهُ الْحَقُّ مِن رَّبِّنَا إِنَّا كُنَّا مِن قَبْلِهِ مُسْلِمِينَ
And when it is recited to them, they say: "We believe therein, for it is the Truth from our Lord: indeed we have been Muslims (bowing to Allah´s Will) from before this.
All of divine religions are common in principle of monotheism, surrendering against unique God. Hence, God has summoned followers of Christian and Jewish religions to it;
قُلْ يَا أَهْلَ الْكِتَابِ تَعَالَوْا إِلَىٰ كَلِمَةٍ سَوَاءٍ بَيْنَنَا وَبَيْنَكُمْ أَلَّا نَعْبُدَ إِلَّا اللَّهَ وَلَا نُشْرِكَ بِهِ شَيْئًا وَلَا يَتَّخِذَ بَعْضُنَا بَعْضًا أَرْبَابًا مِّن دُونِ اللَّهِ ۚ فَإِن تَوَلَّوْا فَقُولُوا اشْهَدُوا بِأَنَّا مُسْلِمُونَ
Say: "O People of the Book! come to common terms as between us and you: That we worship none but Allah; that we associate no partners with him; that we erect not, from among ourselves, Lords and patrons other than Allah." If then they turn back, say ye: "Bear witness that we (at least) are Muslims (bowing to Allah´s Will).
Relationship that Quran shows among divine rules of Islam and other last divine rules shows that the prophet is messenger of last revelation and confirms last heavenly books;
وَأَنزَلْنَا إِلَيْكَ الْكِتَابَ بِالْحَقِّ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ مِنَ الْكِتَابِ وَمُهَيْمِنًا عَلَيْهِ ۖ فَاحْكُم بَيْنَهُم بِمَا أَنزَلَ اللَّهُ ۖ وَلَا تَتَّبِعْ أَهْوَاءَهُمْ عَمَّا جَاءَكَ مِنَ الْحَقِّ ۚ لِكُلٍّ جَعَلْنَا مِنكُمْ شِرْعَةً وَمِنْهَاجًا ۚ وَلَوْ شَاءَ اللَّهُ لَجَعَلَكُمْ أُمَّةً وَاحِدَةً وَلَٰكِن لِّيَبْلُوَكُمْ فِي مَا آتَاكُمْ ۖ فَاسْتَبِقُوا الْخَيْرَاتِ ۚ إِلَى اللَّهِ مَرْجِعُكُمْ جَمِيعًا فَيُنَبِّئُكُم بِمَا كُنتُمْ فِيهِ تَخْتَلِفُونَ
To thee We sent the Scripture in truth, confirming the scripture that came before it, and guarding it in safety: so judge between them by what Allah hath revealed, and follow not their vain desires, diverging from the Truth that hath come to thee. To each among you have we prescribed a law and an open way. If Allah had so willed, He would have made you a single people, but (His plan is) to test you in what He hath given you: so strive as in a race in all virtues. The goal of you all is to Allah; it is He that will show you the truth of the matters in which ye dispute.
يَا بَنِي إِسْرَائِيلَ اذْكُرُوا نِعْمَتِيَ الَّتِي أَنْعَمْتُ عَلَيْكُمْ وَأَوْفُوا بِعَهْدِي أُوفِ بِعَهْدِكُمْ وَإِيَّايَ فَارْهَبُونِ
O Children of Israel! call to mind the (special) favour which I bestowed upon you, and fulfil your covenant with Me as I fulfil My Covenant with you, and fear none but Me.
قُلْ مَن كَانَ عَدُوًّا لِّجِبْرِيلَ فَإِنَّهُ نَزَّلَهُ عَلَىٰ قَلْبِكَ بِإِذْنِ اللَّهِ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ وَهُدًى وَبُشْرَىٰ لِلْمُؤْمِنِينَ
Say: Whoever is an enemy to Gabriel-for he brings down the (revelation) to thy heart by Allah´s will, a confirmation of what went before, and guidance and glad tidings for those who believe.
وَهَٰذَا كِتَابٌ أَنزَلْنَاهُ مُبَارَكٌ مُّصَدِّقُ الَّذِي بَيْنَ يَدَيْهِ وَلِتُنذِرَ أُمَّ الْقُرَىٰ وَمَنْ حَوْلَهَا ۚ وَالَّذِينَ يُؤْمِنُونَ بِالْآخِرَةِ يُؤْمِنُونَ بِهِ ۖ وَهُمْ عَلَىٰ صَلَاتِهِمْ يُحَافِظُونَ
And this is a Book which We have sent down, bringing blessings, and confirming (the revelations) which came before it: that thou mayest warn the mother of cities and all around her. Those who believe in the Hereafter believe in this (Book), and they are constant in guarding their prayers.
وَالَّذِي أَوْحَيْنَا إِلَيْكَ مِنَ الْكِتَابِ هُوَ الْحَقُّ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ ۗ إِنَّ اللَّهَ بِعِبَادِهِ لَخَبِيرٌ بَصِيرٌ
That which We have revealed to thee of the Book is the Truth,- confirming what was (revealed) before it: for Allah is assuredly- with respect to His Servants - well acquainted and Fully Observant.
قَالُوا يَا قَوْمَنَا إِنَّا سَمِعْنَا كِتَابًا أُنزِلَ مِن بَعْدِ مُوسَىٰ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ يَهْدِي إِلَى الْحَقِّ وَإِلَىٰ طَرِيقٍ مُّسْتَقِيمٍ
They said, "O our people! We have heard a Book revealed after Moses, confirming what came before it: it guides (men) to the Truth and to a Straight Path.
Quran does not introduce the prophet as follower of rules of previous religions, but it introduces him as a persons whose religion will deal with all of other religions;
هُوَ الَّذِي أَرْسَلَ رَسُولَهُ بِالْهُدَىٰ وَدِينِ الْحَقِّ لِيُظْهِرَهُ عَلَى الدِّينِ كُلِّهِ وَلَوْ كَرِهَ الْمُشْرِكُونَ
It is He Who has sent His Messenger with Guidance and the Religion of Truth, that he may proclaim it over all religion, even though the Pagans may detest (it).
Quran respects Torah and Bible books;
نَزَّلَ عَلَيْكَ الْكِتَابَ بِالْحَقِّ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ وَأَنزَلَ التَّوْرَاةَ وَالْإِنجِيلَ
It is He Who sent down to thee (step by step), in truth, the Book, confirming what went before it; and He sent down the Law (of Moses) and the Gospel (of Jesus) before this, as a guide to mankind, and He sent down the criterion (of judgment between right and wrong.
ثُمَّ آتَيْنَا مُوسَى الْكِتَابَ تَمَامًا عَلَى الَّذِي أَحْسَنَ وَتَفْصِيلًا لِّكُلِّ شَيْءٍ وَهُدًى وَرَحْمَةً لَّعَلَّهُم بِلِقَاءِ رَبِّهِمْ يُؤْمِنُونَ
Moreover, We gave Moses the Book, completing (Our favour) to those who would do right, and explaining all things in detail,- and a guide and a mercy, that they might believe in the meeting with their Lord.
وَكَتَبْنَا لَهُ فِي الْأَلْوَاحِ مِن كُلِّ شَيْءٍ مَّوْعِظَةً وَتَفْصِيلًا لِّكُلِّ شَيْءٍ فَخُذْهَا بِقُوَّةٍ وَأْمُرْ قَوْمَكَ يَأْخُذُوا بِأَحْسَنِهَا ۚ سَأُرِيكُمْ دَارَ الْفَاسِقِينَ
And We ordained laws for him in the tablets in all matters, both commanding and explaining all things, (and said): "Take and hold these with firmness, and enjoin thy people to hold fast by the best in the precepts: soon shall I show you the homes of the wicked,- (How they lie desolate.
إِنَّا أَنزَلْنَا التَّوْرَاةَ فِيهَا هُدًى وَنُورٌ ۚ يَحْكُمُ بِهَا النَّبِيُّونَ الَّذِينَ أَسْلَمُوا لِلَّذِينَ هَادُوا وَالرَّبَّانِيُّونَ وَالْأَحْبَارُ بِمَا اسْتُحْفِظُوا مِن كِتَابِ اللَّهِ وَكَانُوا عَلَيْهِ شُهَدَاءَ ۚ فَلَا تَخْشَوُا النَّاسَ وَاخْشَوْنِ وَلَا تَشْتَرُوا بِآيَاتِي ثَمَنًا قَلِيلًا ۚ وَمَن لَّمْ يَحْكُم بِمَا أَنزَلَ اللَّهُ فَأُولَٰئِكَ هُمُ الْكَافِرُونَ
It was We who revealed the law (to Moses): therein was guidance and light. By its standard have been judged the Jews, by the prophets who bowed (as in Islam) to Allah´s will, by the rabbis and the doctors of law: for to them was entrusted the protection of Allah´s book, and they were witnesses thereto: therefore fear not men, but fear me, and sell not my signs for a miserable price. If any do fail to judge by (the light of) what Allah hath revealed, they are (no better than) Unbelievers.
وَقَفَّيْنَا عَلَىٰ آثَارِهِم بِعِيسَى ابْنِ مَرْيَمَ مُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ مِنَ التَّوْرَاةِ ۖ وَآتَيْنَاهُ الْإِنجِيلَ فِيهِ هُدًى وَنُورٌ وَمُصَدِّقًا لِّمَا بَيْنَ يَدَيْهِ مِنَ التَّوْرَاةِ وَهُدًى وَمَوْعِظَةً لِّلْمُتَّقِينَ
And in their footsteps We sent Jesus the son of Mary, confirming the Law that had come before him: We sent him the Gospel: therein was guidance and light, and confirmation of the Law that had come before him: a guidance and an admonition to those who fear Allah.
وَلْيَحْكُمْ أَهْلُ الْإِنجِيلِ بِمَا أَنزَلَ اللَّهُ فِيهِ ۚ وَمَن لَّمْ يَحْكُم بِمَا أَنزَلَ اللَّهُ فَأُولَٰئِكَ هُمُ الْفَاسِقُونَ
Let the people of the Gospel judge by what Allah hath revealed therein. If any do fail to judge by (the light of) what Allah hath revealed, they are (no better than) those who rebel.
لَوْ أَنَّهُمْ أَقَامُوا التَّوْرَاةَ وَالْإِنجِيلَ وَمَا أُنزِلَ إِلَيْهِم مِّن رَّبِّهِمْ لَأَكَلُوا مِن فَوْقِهِمْ وَمِن تَحْتِ أَرْجُلِهِم ۚ مِّنْهُمْ أُمَّةٌ مُّقْتَصِدَةٌ ۖ وَكَثِيرٌ مِّنْهُمْ سَاءَ مَا يَعْمَلُونَ
If only they had stood fast by the Law, the Gospel, and all the revelation that was sent to them from their Lord, they would have enjoyed happiness from every side. There is from among them a party on the right course: but many of them follow a course that is evil.
قُلْ يَا أَهْلَ الْكِتَابِ لَسْتُمْ عَلَىٰ شَيْءٍ حَتَّىٰ تُقِيمُوا التَّوْرَاةَ وَالْإِنجِيلَ وَمَا أُنزِلَ إِلَيْكُم مِّن رَّبِّكُمْ ۗ وَلَيَزِيدَنَّ كَثِيرًا مِّنْهُم مَّا أُنزِلَ إِلَيْكَ مِن رَّبِّكَ طُغْيَانًا وَكُفْرًا ۖ فَلَا تَأْسَ عَلَى الْقَوْمِ الْكَافِرِينَ
Say: "O People of the Book! ye have no ground to stand upon unless ye stand fast by the Law, the Gospel, and all the revelation that has come to you from your Lord." It is the revelation that cometh to thee from thy Lord, that increaseth in most of them their obstinate rebellion and blasphemy. But sorrow thou not over (these) people without Faith.
ثُمَّ قَفَّيْنَا عَلَىٰ آثَارِهِم بِرُسُلِنَا وَقَفَّيْنَا بِعِيسَى ابْنِ مَرْيَمَ وَآتَيْنَاهُ الْإِنجِيلَ وَجَعَلْنَا فِي قُلُوبِ الَّذِينَ اتَّبَعُوهُ رَأْفَةً وَرَحْمَةً وَرَهْبَانِيَّةً ابْتَدَعُوهَا مَا كَتَبْنَاهَا عَلَيْهِمْ إِلَّا ابْتِغَاءَ رِضْوَانِ اللَّهِ فَمَا رَعَوْهَا حَقَّ رِعَايَتِهَا ۖ فَآتَيْنَا الَّذِينَ آمَنُوا مِنْهُمْ أَجْرَهُمْ ۖ وَكَثِيرٌ مِّنْهُمْ فَاسِقُونَ
Then, in their wake, We followed them up with (others of) Our messengers: We sent after them Jesus the son of Mary, and bestowed on him the Gospel; and We ordained in the hearts of those who followed him Compassion and Mercy. But the Monasticism which they invented for themselves, We did not prescribe for them: (We commanded) only the seeking for the Good Pleasure of Allah; but that they did not foster as they should have done. Yet We bestowed, on those among them who believed, their (due) reward, but many of them are rebellious transgressors.
يَا أَيُّهَا الَّذِينَ آمَنُوا اتَّقُوا اللَّهَ وَآمِنُوا بِرَسُولِهِ يُؤْتِكُمْ كِفْلَيْنِ مِن رَّحْمَتِهِ وَيَجْعَل لَّكُمْ نُورًا تَمْشُونَ بِهِ وَيَغْفِرْ لَكُمْ ۚ وَاللَّهُ غَفُورٌ رَّحِيمٌ
O ye that believe! Fear Allah, and believe in His Messenger, and He will bestow on you a double portion of His Mercy: He will provide for you a Light by which ye shall walk (straight in your path), and He will forgive you (your past): for Allah is Oft-Forgiving, Most Merciful.
لِّئَلَّا يَعْلَمَ أَهْلُ الْكِتَابِ أَلَّا يَقْدِرُونَ عَلَىٰ شَيْءٍ مِّن فَضْلِ اللَّهِ ۙ وَأَنَّ الْفَضْلَ بِيَدِ اللَّهِ يُؤْتِيهِ مَن يَشَاءُ ۚ وَاللَّهُ ذُو الْفَضْلِ الْعَظِيمِ
That the People of the Book may know that they have no power whatever over the Grace of Allah, that (His) Grace is (entirely) in His Hand, to bestow it on whomsoever He wills. For Allah is the Lord of Grace abounding.