Sahih al-Bukhari 1279
صحيح البخاري#1279Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا بِشْرُ بْنُ الْمُفَضَّلِ، حَدَّثَنَا سَلَمَةُ بْنُ عَلْقَمَةَ، عَنْ مُحَمَّدِ بْنِ سِيرِينَ، قَالَ تُوُفِّيَ ابْنٌ لأُمِّ عَطِيَّةَ ـ رضى الله عنها ـ فَلَمَّا كَانَ الْيَوْمُ الثَّالِثُ دَعَتْ بِصُفْرَةٍ، فَتَمَسَّحَتْ بِهِ وَقَالَتْ نُهِينَا أَنْ نُحِدَّ أَكْثَرَ مِنْ ثَلاَثٍ إِلاَّ بِزَوْجٍ.
Narrated Muhammad bin Seereen:One of the sons of Um 'Atiyya died, and when it was the third day she asked for a yellow perfume and put it over her body, and said, "We were forbidden to mourn for more than three days except for our husbands
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 23:40