Ibn ‘Abbas said “The following verse abrogated the rule of passing her waiting period with her people. A year’s maintenance and residence. She may pass her waiting period now anywhere she wishes. ‘Ata said “If she wishes she can pass her waiting period with the people of her husband and live in the house left by her husband by will. Or she may shift if she wishes according to the pronouncement of Allah the Exalted. But if they leave (the residence) there is no blame on you for what they do. Ata’ said “Then the verses regarding inheritance were revealed. The commandment for living in a house (for one year) was repealed. She may pass her waiting period wherever she wishes.
‘Umm Athiyah reported the Prophet(ﷺ) as saying “A woman must not observe mourning for more than three (days) except for four months and ten days in the case of a husband and she must not wear a dyed garment except one of the types made of dyed yarn or apply collyrium or touch perfume except for a little costus or azfar when she has been purified after her menstrual courses. The narrator Ya’qub mentioned the words “except washed clothes” instead of the words “one of the types made of dyed yarn”. Ya’qub also added “She must not apply Henna”
The Messenger of Allah (ﷺ) used to fast three days every month.