Sahih al-Bukhari
1135
Prayer at Night (Tahajjud) | B:19 - H:16
Narrated Abu-Wail:
`Abdullah said, "One night I offered the Tahajjud prayer with the Prophet (ﷺ) and he kept on standing till an ill-thought came to me." We said, "What was the ill-thought?" He said, "It was to sit down and leave the Prophet (standing)."
Chapter: To prolong the standing posture in the Tahajjud
Sahih