It wasnarrated from Abu Hurairah that the Prophet (ﷺ) said:
"Whoeverunintentionally vomits, he does not have to make up for thefast, butwhoever makes himself vomit, has to make up for the fast." (FR)
English reference (FR): Vol. 1, Book 7, Hadith 1676 (FR)
Arabic reference (FR): Book 7, Hadith 1746 (FR)