Purity: Ruling on Mixed Water and Its Inability to Purify

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 44

Mixed water – the meaning of which was mentioned in Ruling 13 – does not purify an impure object, and ritual bathing (ghusl) and ablution (wuḍūʾ) performed with it are invalid (bāṭil).

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