(25) باب اغْتِسَالِ الصَّائِمِ
Narrated `Aisha:
(At times) in Ramadan the Prophet (ﷺ) used to take a bath in the morning not because of a wet dream and would continue his fast.
Reference: Sahih al-Bukhari 1930
In-book reference: Book 30, Hadith 38
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 31, Hadith 152