Does subsequent minor ritual impurity (Hadath) affect Tayammum performed for major ritual impurity (Janabah)?
Chapter on Tayammum
Al-Mughni
Book of Purification
Primary text
If one performs Tayammum for Janabah and subsequently experiences minor impurity (Hadath), this does not affect the validity of the Tayammum for Janabah. This is because the Tayammum for Janabah is a substitute for the Ghusl (full ritual bath), and minor impurity does not invalidate the Ghusl, thus it does not invalidate the substitute.