Is it permissible to perform tayammum and lead the people in prayer if I fear the cold?

Question:
May Allah reward you with good and do you well. If one is in a state of major ritual impurity and the cold is severe, and one fears for oneself from performing the full ritual bath, is it permissible to pray the dawn prayer with tayammum and also perform tayammum for the people? May Allah reward you with good.

Answer:
This is not permissible except if you are in a place where you are unable to heat the water. However, if you are in a place where you are able to heat the water, or obtain hot water, or the water is not extremely cold, then it is obligatory for you to seek suitable water and perform the full ritual bath with it to remove the major ritual impurity, and then pray afterwards, either alone or with the congregation. As for if you are in a place where you are unable to heat the water, such as being in the desert without fire with you and no one around you with fire to heat the water with, then at that time you perform tayammum. This is because 'Amr ibn al-'As (may Allah be pleased with him) went out on a military expedition and experienced a wet dream, and he had nothing with which to heat the water, and the cold was severe, so he performed tayammum and led his companions in prayer. When this reached the Prophet (peace and blessings be upon him), he approved it and did not order him to repeat the prayer. Yes.