Divorce
Ṣaḥīḥ al-Bukhārī 5334
لاَ يَحِلُّ لاِمْرَأَةٍ تُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ أَنْ تُحِدَّ عَلَى مَيِّتٍ فَوْقَ ثَلاَثِ لَيَالٍ، إِلاَّ عَلَى زَوْجٍ أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا
lā yaḥillu limraʾatin tuʾminu billāh wa-l-yawmi al-ākhiri an tuḥidda ʿalā mayyitin fawqa thalāthi layālin, illā ʿalā zawjin arbaʿaha ashhurin waʿashran
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Humaid bin Nafi`:Zainab bint Abu Salama told me these three narrations: Zainab said: I went to Um Habiba, the wife of the Prophet (ﷺ) when her father, Abu- Sufyan bin Herb had died. Um ,Habiba asked for a perfume which contained yellow scent (Khaluq) or some other scent, and she first perfumed one of the girls with it and then rubbed her cheeks with it and said, "By Allah, I am not in need of perfume, but I have heard Allah's Messenger (ﷺ) saying, 'It is not lawful for a lady who believes in Allah and the Last Day to mourn for a dead person for more than three days unless he is her husband for whom she should mourn for four months and ten days
Source
Ṣaḥīḥ al-Bukhārī · 5334