19:64
وَمَا نَتَنَزَّلُ إِلَّا بِأَمْرِ رَبِّكَ ۖ لَهُۥ مَا بَيْنَ أَيْدِينَا وَمَا خَلْفَنَا وَمَا بَيْنَ ذَٰلِكَ ۚ وَمَا كَانَ رَبُّكَ نَسِيًّا
wamā natanazzalu illā bi-amri rabbika lahu mā bayna aydīnā wamā khalfanā wamā bayna dhālika wamā kāna rabbuka nasiyyan
[Gabriel said],‘We only descend [with revelation] at your Lord’s command––everything before us, everything behind us, everything in between, all belongs to Him––your Lord is never forgetful.
And we (angels) descend not except by the Command of your Lord (O Muhammad صلى الله عليه وسلم). To Him belongs what is before us and what is behind us, and what is between those two; and your Lord is never forgetful -