(6) باب ذِكْرِ الْمَلاَئِكَةِ
Narrated Ibn `Abbas:
Allah's Messenger (ﷺ) asked Gabriel, "Why don't you visit us more often than you do?" Then the following Holy Verse was revealed (in this respect):-- "And we (angels) descend not but by the order of your Lord. To Him belong what is before us and what is behind us, and what is between those two and your Lord was never forgetful." (19.64)
Reference: Sahih al-Bukhari 3218
In-book reference: Book 59, Hadith 29
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 54, Hadith 441