Sayyidah Umm Atiyyah (may Allah be pleased with her) said: "We were forbidden to mourn for a deceased person for more than three days, except for a husband, four months and ten days; during that time we would not apply kohl, nor wear perfume, nor wear dyed clothing, except garments of 'asb. And a concession was given at the time of purification: when one of us took the ritual bath after her menstruation, she could use 'a little qust and azfar' (kinds of incense)."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 869