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* تفسير Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs مصنف و مدقق مرحلة اولى

{ وَقَالَ ٱلَّذِينَ كَفَرُواْ لَوْلاَ نُزِّلَ عَلَيْهِ ٱلْقُرْآنُ جُمْلَةً وَاحِدَةً كَذَلِكَ لِنُثَبِّتَ بِهِ فُؤَادَكَ وَرَتَّلْنَاهُ تَرْتِيلاً }

(And those who disbelieve) Abu Jahl and his host (say: Why is the Qur'an not revealed unto him all at once) just like the Torah was revealed all at once to Moses, and the Gospel to Jesus and the Psalms to David? ((It is revealed) thus) He says: We have sent Gabriel with the Qur'an in instalments (that We may strengthen thy heart therewith) that We may gladden your heart and preserve your heart; (and We have arranged it in right order) We exposited it by detailing the commands and prohibitions; it is also said that this means: We have sent Gabriel with the Qur'an in instalments verse after verse.