Purity: Wudu with a Bleeding Wound

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 278:

If there is a cut or a wound on one’s face or arms, and blood from it does not stop, and water is not harmful to it, he must – having first washed that area in the correct order of wuḍūʾ – immerse the cut or wound in kurr or flowing water and then put pressure on it so that the blood stops; then, under the water, he must draw his finger along the cut or wound from top to bottom so that water flows over it and then wash the lower parts. If he does this, his wuḍūʾ is valid.

-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)