Al-Ṣafadiyyah - Ibn Taimiya - (2/301)

What is absolutely certain is that they do not believe in God, His angels, His messengers, or the Last Day, nor do they follow the religion of Islam with which God sent all the messengers—namely, the worship of God alone with no partner beside Him. This is the religion of Islam, and God will accept from none of the earlier or later generations any religion other than it.

God recounts of Noah:

“O my people, if my position among you and my reminding you of the signs of God have become burdensome to you, then in God I have placed my trust. So muster your plan—and your partners—then let your decision not be unclear to you; carry it out against me and give me no respite. But if you turn away, I have asked you for no reward; my reward lies only with God, and I have been commanded to be among those who submit to Him.”
(Qur’an 10:71–72)

It is authentically established from the Prophet—peace and blessings be upon him—that Noah was the first messenger sent to the people of the earth, and that he, peace be upon him, said:

“I have been commanded to be the first of those who submit.”
(Qur’an 39:12)

والذي لا ريب فيه أنهم لا يؤمنون بالله ولا بملائكته ولا رسله ولا اليوم الآخر ولا يدينون دين الإسلام الذي بعث الله به جميع الرسل وهو عبادة الله وحده لا شريك له فإن هذا دين الإسلام الذي لا يقبل الله من أحد من الأولين والآخرين دينا غيره. قال تعالى عن نوح: {يَا قَوْمِ إِنْ كَانَ كَبُرَ عَلَيْكُمْ مَقَامِي وَتَذْكِيرِي بِآياتِ اللَّهِ فَعَلَى اللَّهِ تَوَكَّلْتُ فَأَجْمِعُوا أَمْرَكُمْ وَشُرَكَاءَكُمْ ثُمَّ لا يَكُنْ أَمْرُكُمْ عَلَيْكُمْ غُمَّةً ثُمَّ اقْضُوا إِلَيَّ وَلا تُنْظِرُونِ فَإِنْ تَوَلَّيْتُمْ فَمَا سَأَلْتُكُمْ مِنْ أَجْرٍ إِنْ أَجْرِيَ إِلاَّ عَلَى اللَّهِ وَأُمِرْتُ أَنْ أَكُونَ مِنَ الْمُسْلِمِينَ} (سورة يونس ٧١-٧٢) . وقد ثبت في الصحيح عن النبي صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أنه أول رسول بعث إلى أهل الأرض وأنه قال: {وَأُمِرْتُ لأَنْ أَكُونَ أَوَّلَ الْمُسْلِمِينَ} (سورة الزمر ١٢) .