Saeed bin Jubair narrates: (In this narration, the narrator did not mention Sayyiduna Abdullah bin Abbas, may Allah be pleased with them both) When the Noble Qur’an was revealed to the Prophet Muhammad, peace and blessings be upon him, he would recite it quickly in order to memorize it. So Allah Almighty revealed this verse: «لَا تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ * إِنَّ عَلَيْنَا جَمْعَهُ وَقُرْآنَهُ» “Do not move your tongue with it to hasten it; surely, upon Us is its collection and its recitation.”Saeed bin Jubair narrates: The Prophet Muhammad, peace and blessings be upon him, did not know when a surah was completed until this verse was revealed to him «بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ» .