What invalidates Tayammum performed for menstruation or post-natal bleeding?
Chapter on Tayammum
Al-Mughni
Book of Purification
Primary text
The ruling associated with Tayammum for menstruation (Hayd) or post-natal bleeding (Nifas) is only nullified by the occurrence of menstruation or post-natal bleeding itself, or by one of the two aforementioned conditions (meaning the cessation of the state or the return of the state necessitating Ghusl).