Is it permissible to wear black clothes out of grief for the deceased, and for which relatives is this permissible, and what is the duration of mourning?

Mourning entails abstaining from perfumes, adornment, kohl, and scented or unscented oils, unless there is a valid excuse.

Islamic law specifies mourning as follows: 1. A woman whose husband has passed away observes mourning for four months and ten days. 2. A woman whose relative has passed away observes mourning for three days. It is not permissible for a woman who believes in Allah and the Last Day to mourn for a deceased person for more than three nights, except for her husband, for four months and ten days.

Mourning for relatives is permissible for only three days, and the husband may prevent his wife from mourning for longer, as adornment is his right.

As for a woman wearing black clothes as a sign of grief for the deceased, the Hanafis have forbidden it, except for a wife mourning her husband for three days. She is considered sinful if she wears it out of regret for the deceased, except for a wife in the case of her husband for three days.

According to the Malikis, a wife may wear black clothes during the waiting period (iddah (definition)) after her husband's death, unless the garment is pure white or if black is considered an adornment by her people.

The widespread custom in some countries of exclusively wearing black for mourning and abstaining from other colors, even if they are not adornments, has no basis in Islamic law.