Sahih al-Bukhari, Book 65, Hadith 4731 (In-Book) ⓘ
Narrated Ibn `Abbas: The Prophet 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)
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا عُمَرُ بْنُ ذَرٍّ، قَالَ سَمِعْتُ أَبِي، عَنْ سَعِيدِ بْنِ جُبَيْرٍ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم لِجِبْرِيلَ " مَا يَمْنَعُكَ أَنْ تَزُورَنَا أَكْثَرَ مِمَّا تَزُورُنَا فَنَزَلَتْ {وَمَا نَتَنَزَّلُ إِلاَّ بِأَمْرِ رَبِّكَ لَهُ مَا بَيْنَ أَيْدِينَا وَمَا خَلْفَنَا}"
also referenced under: Hadith 4731 (DarusSalam) & Volume 6, Book 60, Hadith 255 (USC-MSA)