مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2042
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas said: The Messenger of Allah (ﷺ) said to Jibreel (عليه السلام): “What kept you from visiting us more than you visited us? Then the verse "And we (angels) descend not except by the Command of your Lord..." [Maryam 19:64] was revealed.
Musnad Ahmad 2043lts isnad is saheeh, al-Bukhari (3218)]