Narrated Ibn `Abbas:
The Prophet (ﷺ) said to Gabriel, "What prevents you from visiting us more often than you visit us now?" So there was revealed:-- 'And we (angels) descend not but by the command of your Lord. To Him belongs what is before us and what is behind us...'(19.64) (DE)
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 255 (DE)
Arabic reference (DE): Book 65, Hadith 4731 (DE)