Sahih Al Bukhari Hadith Number 1125

Narrated Jundab bin `Abdullah: Gabriel did not come to the Prophet (for some time) and so one of the Quraish women said, “His Satan has deserted him.” So came the Divine Revelation: “By the forenoon And by the night When it is still! Your Lord (O Muhammad) has neither Forsaken you Nor hated you.” (93.1-3)

19  Prayer at Night (Tahajjud)
Hadith number 1125
Volume no 2
Chapter: 4 ( Leaving the night prayer by a patient)