According to the Hanafī school, is it obligatory to wash impurities that have exuded from several boils if they exceed the size of a dirham, and were wiped with a tissue, and their substance and trace have vanished?

We previously presented the rulings on what is excused regarding impurities in a previous fatwa. Wiping a visible impurity, such as blood, from the body does not purify it according to the Hanafis; rather, it must be washed with water. Their disagreement lies in the number of washes (once or three times). If the fluid blood is more than the size of a dirham, then the prayer is not valid according to the Hanafis, because any amount of flowing blood exceeding a dirham is not excused and is considered a grave impurity (najāsa ghalīẓa).