Purity: Ruling on Variations in Face Size and Shape for Washing in Wuḍūʾ
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 237
If someone’s face is longer than normal from the chin, he must wash his entire face. If hair grows on one’s forehead or one does not have hair on the front part of his head, he must wash the same amount of his forehead that people with normal foreheads wash. Someone whose face is wider or narrower than normal, or has longer or shorter fingers and thumbs than normal, must take into account an area between the middle finger and thumb that would be proportionate to the size of his face and wash that amount.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)


