Ad-Duhaa 93:2

As narrated from Jundub ibn Sufyan in Bukhari and Muslim, the Prophet fell ill and did not rise (for night worship) for two or three nights. A woman came and said, "O Muhammad! I hope your devil has finally abandoned you"; some reports identify her as Umm Jamil, the wife of Abu Lahab. Thereupon the verses were revealed: "By the morning brightness, and by the night when it grows still: your Lord has not forsaken you, nor does He despise you."

Buhârî 4950; Müslim 1797

Surah ad-Duha is Meccan, revealed in the early Meccan period. As related from Jundub ibn Abdullah in Bukhari and Muslim, when revelation paused for a time (the fatra) one of the polytheists said 'His Lord has forsaken him', whereupon the surah came down consoling the Prophet with the verse 'Your Lord has not forsaken you, nor does He despise you'. Recalling how the Prophet was an orphan and was cared for, the surah commands kindness to the orphan and to the one who asks.

Buhârî ve Müslim rivayetleri (Cündeb hadisi); klasik tefsir mukaddimeleri