Purity: Payment Intentions in Public Baths
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 381:
If the owner of a public bath consents for the money owed to him for using the public bath to be paid on credit, but the person who performs ghusl does not intend to pay the debt he owes him, or he intends to pay him from unlawful money, his ghusl is void.
-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)