Is there evidence in the story of 'Umar's prayer and his bleeding wound that blood loss does not invalidate the ablution?

Question:
He says: Honorable Shaykh, may Allah grant you success, how do you reconcile the fact that the loss of a large amount of blood invalidates the ablution with the story of 'Umar's prayer when he was stabbed and prayed while his wound was spurting blood?

Answer:
Yes, this is evidence for those who say that blood loss does not invalidate the ablution; their evidence is this story of 'Umar and similar incidents. However, the school of thought holds that his ablution is invalidated because a ritually impure substance resembling urine and feces came out of his body. Yes.