The ruling on tayammum (dry ablution with clean earth) if one fears severe cold for oneself, and whether one should delay the prayer until one performs ghusl (the full ritual bath)?

Question:
May Allah reward you. The listener M. A. M. says: First, peace be upon you and Allah’s mercy and blessings. I love you for the sake of Allah. My question is: If a person experiences a wet dream and becomes in a state of janabah (major ritual impurity), and the cold is severe so that he is unable to perform ghusl because of the intensity of the cold, is it permissible for him to perform tayammum for the Fajr (the dawn prayer) prayer despite the presence of water, but because of the severe cold? And is it permissible for him to delay the Fajr prayer until he performs ghusl?

Answer:
If he is in the open, and he has nothing with which to warm the water, and he fears for his life due to the severe cold, then there is no harm in his performing tayammum and praying, as 'Amr ibn al-'As (may Allah be pleased with him) did. He mentioned this to the Prophet (peace and blessings be upon him), and the Prophet approved it for him. Allah the Exalted said: However, if he has something with which to warm the water, such as firewood or other heating materials, then it is not permissible for him to perform tayammum. Rather, he must warm the water and perform ghusl from it. It is not permissible for him to perform tayammum because he has water and is able to use it by means of heating it. As for delaying the prayer until after the sun rises because of the cold, this is not permissible. Rather, he must pray within its time. If he is able to achieve purity with water, it is obligatory for him to do so; otherwise, he performs tayammum and prays before the time expires. Yes.