Sahih Muslim 4656
صحيح مسلم#4656SahihIt has been narrated on the authority of Aswad b. Qais who heard Jundub saying that Gabriel delayed his visit to the Messenger of Allah (ﷺ) The polytheists began to say that Muhammad has been forsaken. At this Allah, the Glorious and Exalted, revealed:" Wa'dd hd wa'l-laili iza saja, ma wadda'ka Rabbuka wa' ma qala" [By the glorious morning light, and by the night when it is still: thy Lord has not forsaken thee, nor is He displeased]
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 32:138