Shaykh Abu Ja’far said that the transmission of the Holy Qur’an began in the month of Ramadhan, and then it was transmitted gradually over twenty years. God had provided a complete overview of the Qur’an to the Prophet beforehand, that is why He said:

فَتَعَالَى اللَّهُ الْمَلِكُ الْحَقُّ وَلَا تَعْجَلْ بِالْقُرْآنِ مِن قَبْلِ أَن يُقْضَىٰ إِلَيْكَ وَحْيُهُ وَقُل رَّبِّ زِدْنِي عِلْمًا

“Supremely exalted is therefore Allah, the King, the Truth and (O, Prophet) do not make haste with the Qur’an before its revelation is made complete to you and say: O my Lord! Increase me in knowledge” (20:114).

Qur’an invited the Prophet to supplicate in this manner:

رَّبِّ زِدْنِي عِلْمًا

“O my Lord! Increase me in knowledge” (20:114).

Once again, the Prophet was advised by God:

لَا تُحَرِّكْ بِهِ لِسَانَكَ لِتَعْجَلَ بِهِ

“(O Prophet) Do not move your tongue with it to make haste with it” (75:16).

إِنَّ عَلَيْنَا جَمْعَهُ وَقُرْآنَهُ

“Surely on Us (devolves) the collecting of it and the reciting of it” (75:17).

فَإِذَا قَرَأْنَاهُ فَاتَّبِعْ قُرْآنَهُ

“Therefore, when We have recited it, follow its recitation” (75:18).

ثُمَّ إِنَّ عَلَيْنَا بَيَانَهُ

“Again, on Us (devolves) the explaining of it” (75:19).