The Ruling on Preparing the Deceased, Trimming His Mustache, and Combing a Woman’s Hair

Question:
Shaykh, regarding trimming the mustache and nails and combing a woman’s hair as mentioned, is there an indication that the one who does this is following the Sunnah of the Prophet (peace and blessings be upon him) while he is alive, and that he is preparing himself to be among the people of the Sunnah? And that the one who opposes this will be returned to the Sunnah that Allah (Mighty and Majestic) is pleased with, while he is dead? If a Muslim lets his mustache grow and leaves it long, and then when he is laid on the washing bed, it is trimmed, or if a woman did not do that with her hair, then the Sunnah for her is that when she is laid on the washing bed…

Answer:
In any case, he is a Muslim, so the Sunnah is practiced with him, and the Sunnah is practiced with him because he is a Muslim, praise be to Allah. Even if during his lifetime he had not used it, it may have been out of ignorance, or his mustache may have grown long because of the length of his illness and his preoccupation with it, or for any of the reasons. So he is put in the best form, because trimming the mustache, cutting the nails, plucking the armpits, shaving the pubic area, and trimming the mustache are among the Sunnahs of the fitrah (the innate natural disposition).