Ruling 548:
A man can give ghusl to a young girl who cannot discern between right and wrong. A woman can give ghusl to a young boy who cannot discern between right and wrong.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)
Purity: Cross-Gender Ghusl for Children
Practical Laws of Islam as per the teachings of Ayatullah Sistani
