When vomited blood is thick and coagulated, the mouthful threshold remains relevant. For liquid blood, Abu Hanifa and Abu Yusuf treat even a lesser amount as invalidating, whereas Muhammad retains the mouthful criterion.
This disagreement concerns the state of blood, not ordinary food vomiting.
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Invalidators of Wudu: Actual and Constructive Causes
When vomited blood is thick and coagulated, the mouthful threshold remains relevant. For liquid blood, Abu Hanifa and Abu Yusuf treat even a lesser amount as invalidating, whereas Muhammad retains the mouthful criterion.
This disagreement concerns the state of blood, not ordinary food vomiting.