Does vomiting invalidate ablution?
It is narrated that Prophet Muhammad (saw) re-performed ablution due to vomiting (Tirmidhi, Taharah, 64). However, vomiting should be mouthful in order to invalidate the minor ablution. A mouthful of vomit, whether it is food, bile or blood, invalidates minor ablution. Sputum, on the other hand, is like saliva and does not invalidate minor ablution. The measure of mouthfulness is not being able to keep the vomit in mouth without difficulty. If a person vomits more than once without changing place and the vomits exceed mouthful amount in total, then ablution is also invalidated (Marghinani, al-Hidayah, I, 110-113; Mawsili, al-Ikhtiyar, I, 49-52; Maydani, al-Lubab, I, 12).
Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS
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