It was narrated from Zainab bint Abi Salamah that Umm Habibah said: “I heard the Messenger of Allah صلی اللہ علیہ وآلہ وسلم say on this Minbar: ‘It is not permissible for any woman who believes in Allah and His Messenger to mourn for anyone who dies for more than three days, except for a husband, (for whom the mourning period is) four months and ten days.” (Sahih)