Is the understanding of the Hadith: "Indeed, the Jews and Christians do not dye their hair, so differ from them," that changing gray hair is obligatory, recommended, or permissible? And does this apply to the hair of the head and beard, or only the beard? And is changing gray hair obligatory when it appears partially or when it is complete? What is the method for changing gray hair, and is it obligatory to dye all hair or is a part of it sufficient? And what is the recommended color for changing gray hair?
Changing gray hair is recommendable (mustahabb) and not obligatory according to the majority of scholars. It is recommended to change the gray hair of the head and beard. There is no objection to dyeing with any color other than black. It is permissible to dye hair with henna and katam, and it has been authentically reported that some Companions dyed their hair with henna.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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