(1) باب كَيْفَ نُزُولُ الْوَحْىِ وَأَوَّلُ مَا نَزَلَ
Narrated Jundub:
Once the Prophet (ﷺ) fell ill and did not offer the night prayer (Tahajjud prayer) for a night or two. A woman (the wife of Abu Lahab) came to him and said, "O Muhammad ! I do not see but that your Satan has left you." Then Allah revealed (Surat-Ad-Duha): 'By the fore-noon, and by the night when it darkens (or is still); Your Lord has not forsaken you, nor hated you.' (93)
Reference: Sahih al-Bukhari 4983
In-book reference: Book 66, Hadith 5
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 6, Book 61, Hadith 506