Sahih al-Bukhari 7299
صحيح البخاري#7299SahihNarrated Abu Huraira:The Prophet (ﷺ) said (to his companions), "Do not fast Al-Wisal." They said, "But you fast Al-Wisail." He said, "I am not like you, for at night my Lord feeds me and makes me drink." But the people did not give up Al-Wisal, so the Prophet (ﷺ) fasted Al-Wisal with them for two days or two nights, and then they saw the crescent whereupon the Prophet (ﷺ) said, "If the crescent had delayed, I would have continued fasting (because of you)," as if he wanted to vanquish them completely (because they had refused to give up Al Wisal)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 96:30