The Prophet (ﷺ) said, "It is not lawful for a lady who believes in Allah and the Last Day, to mourn for more than three days for a dead person, except for her husband, in which case she should neither put kohl in her eyes, nor perfume herself, nor wear dyed clothes, except a garment of 'Asb"
Sahih al-Bukhari Book 68, Hadith 87
← Previous Hadith We were forbidden to mourn for more than three days for a dead person, except for a husband, for whom a wife should mourn for four months and ten days (while in the mourning period) we were not allowed to put kohl in our eyes, nor perfume our-selves, nor wear dyed clothes, except a garment of 'Asb (special clothes made in Yemen). But it was permissible for us that when one of us became clean from her menses and took a bath, she could use a piece of a certain kind of incense. And it was forbidden for us to follow funeral processions.

Sahih al-Bukhari Book 68, Hadith 86 Next Hadith → The Prophet (ﷺ) said, "She should not use perfume except when she becomes clean from her menses whereupon she can use Qust, and Azfar (two kinds of incense).

Sahih al-Bukhari Book 68, Hadith 88