(85) باب صَوْمِ يَوْمِ عَرَفَةَ
Narrated Um Al-Fadl:
The people doubted whether the Prophet (ﷺ) was observing the fast on the Day of `Arafat, so I sent something for him to drink and he drank it.
Reference: Sahih al-Bukhari 1658
In-book reference: Book 25, Hadith 139
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 26, Hadith 720