Answer In addition to the verse you have mentioned...
Answer In addition to the verse you have mentioned: “…He is the Apostle of God and the Seal of the Prophets…” [^2] there are others that proclaim the universality and perpetuality of the message of Islam.
The following are some examples: وَأُوحِيَ إِلَيَّ هَٰذَا الْقُرْآنُ لِأُنْذِرَكُمْ بِهِ وَمَنْ بَلَغَ ۚ “…And this Qur’an has been revealed to me that I may warn thereby you and whomever it may reach…” [^3] وَإِنَّهُ لَكِتَابٌ عَزِيزٌ لَا يَأْتِيهِ الْبَاطِلُ مِنْ بَيْنِ يَدَيْهِ وَلَا مِنْ خَلْفِهِ ۖ “…Indeed it is an august Book: falsehood cannot approach it, neither from before it nor from behind it…” [^4] The claim to perpetuality of a religion would be meaningless without the finality of the bringer of the religion.
Furthermore, the following verses that aver the Qur’an’s superiority to other revealed books also imply the Noble Prophet’s superiority, for the Noble Qur’an is the Prophet’s message, and a prophet’s merit is determined by his message وَنَزَّلْنَا عَلَيْكَ الْكِتَابَ تِبْيَانًا لِكُلِّ شَيْءٍ “…We have sent down the Book to you as a clarification of all things…” [^5] وَآتَيْنَاهُ الْإِنْجِيلَ فِيهِ هُدًى وَنُورٌ وَمُصَدِّقًا لِمَا بَيْنَ يَدَيْهِ مِنَ التَّوْرَاةِ وَهُدًى وَمَوْعِظَةً لِلْمُتَّقِينَ “We have sent down to you the Book with the truth, confirming what was before it of the Book and as a guardian over it…” [^6] شَرَعَ لَكُمْ مِنَ الدِّينِ مَا وَصَّىٰ بِهِ نُوحًا وَالَّذِي أَوْحَيْنَا إِلَيْكَ وَمَا وَصَّيْنَا بِهِ إِبْرَاهِيمَ وَمُوسَىٰ وَعِيسَىٰ ۖ “He has prescribed for you the religion which He had enjoined upon Noah and which We have also revealed to you, and which We had enjoined upon Abraham, Moses, and Jesus…” [^7] The Intercession of the Fellows of Divine Unity [Ahl Al-Tawhid] Question In his “ Al-Tawhid ”, Majlisi, describing the qualities of the fellows of Divine Unity, narrates the following hadith from the Noble Prophet: “And verily the fellows of Divine Unity intercede [on behalf of others], and their intercession is heeded.”[^8] Please explain for whom do the fellows of Divine Unity intercede?
Clearly, they do not intercede for the polytheists; the monotheists, as affirmers of Divine Unity, are themselves fellows of Divine Unity. So then for whom do they intercede? Answer The above hadith may be construed in one of two ways. First, the “fellows of Divine Unity” may refer exclusively to the highest elite of the monotheists, the Gnostics.[^9] Second, the phrase may be understood to include all monotheists.
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