If a thief breaks into a person's house during the night whether he is armed or not, would it be permissible to kill him?
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It is permissible to stand against the aggressor, whether an assailant or a thief with the least possible harm. (Part No. 26; Page No. 318) If a person can stand against him by a verbal threat, it will not be permissible for him to use force such as beating, killing, or the like.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.