The Book on Divorce and Li'an

Humaid bin Nafi narrated that :

Zainab bint Abi Salamah said: "I entered upon Umm Habibah, the wife of the Prophet (ﷺ) when her father Sufyan bin Harb died. So she asked for some perfume that had something yellow saffron or something else, so a girl applied it to her and put some on her cheeks. Then she said: 'By Allah! I have no need for perfume except that I heard the Messenger of Allah saying: "It is not lawful for a woman who believers in Allah and the Last Day to mourn for the dead more than three days, except for her husband (in which case it is) four months and ten days."