Humayd reported,

I asked Zaynab, "What does throwing the piece of dung at the end of the year mean?"Zaynab explained, "In the past, when a woman's husband died, she would withdraw into a tiny hut, put on her worst clothes, and touch no perfume until a full year had passed. Then some animal would be brought to her, a donkey, a sheep, or a bird, and she would break her seclusion by rubbing herself against it. Rarely did she use anything for this that did not die. After that she would come out and be handed a piece of dung, which she would throw. Only then could she return to whatever she wished of perfume or anything else."Malik was asked what "she would break her seclusion by rubbing herself against it" meant. He said, "She would rub her skin with it."

Bukhari 5337

Sahih

قال حميد

فقلت لزينب وما ترمي بالبعرة على رأس الحول فقالت زينب كانت المرأة إذا توفي عنها زوجها دخلت حفشا ولبست شر ثيابها ولم تمس طيبا حتى تمر بها سنة ثم تؤتى بدابة حمار أو شاة أو طائر فتفتض به فقلما تفتض بشيء إلا مات ثم تخرج فتعطى بعرة فترمي ثم تراجع بعد ما شاءت من طيب أو غيره سئل مالك ما تفتض به قال تمسح به جلدها

البخاري 5337صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Divorce
Chapter
A widow's mourning period of four months and ten days
Numbering
Darussalam 5337
Bukhari 5337