If a person enters the mosque while in a state of ritual impurity (junub) and performs tayammum therein, must he repeat the prayer?

Tayammum is prescribed when water is unavailable or when one is unable to use it, such as due to extreme cold water where there is a fear of illness, provided there is no means to heat the water. It is permissible for a person in a state of major ritual impurity (junub) to pass through a mosque out of necessity, based on the Almighty's saying: "nor a person in a state of major ritual impurity, except while passing through," and the hadith "I do not permit the mosque for a menstruating woman nor a person in a state of major ritual impurity" is weak. If a person in a state of major ritual impurity performs tayammum and prays in the mosque, their prayer is valid and they are not required to repeat it.