“I heard Fadalah bin ‘Ubaid
Al-
Ansari narrating that the Prophet (ﷺ) came out to them on a day
when
he was fasting. He called for a vessel and drank. We said: ‘O
Messenger of Allah, you were fasting today.’ He said: ‘Yes, but I
vomited.’”
Sunan Ibn Majah Book 7, Hadith 38