سورة الرحمن

Imam al-Rida (peace be upon him): He is Ali ibn Abi Talib (peace be upon him); Allah the Exalted taught him the exposition of everything that people are in need of.

Imam Ali (peace be upon him): And Allah is far too exalted for it to be said of Him that He has a place to which one can point. By Allah! He is not as the disbelievers say, nor as the ignorant suppose, but He was while there was no place at all, in such a manner that human minds cannot reach Him. And my saying "He was" is to make known His being, and this is part of the bayan (exposition) that has been taught. Allah the Mighty and Majestic says: خَلَقَ الْإِنسَانَ * عَلَّمَهُ الْبَیَانَ [He created man, taught him the mode of expression]. So my saying about Him "He was" is part of the bayan which Allah taught me, so that I may speak of the proof and evidence of the greatness of Allah, the Bestower.

Imam Sadiq (peace be upon him): الْبَیانَ [the mode of expression] is the Greatest Name by which everything is known.