Hazrat Umm Salamah and Hazrat Umm Habibah (may Allah be pleased with them) narrate that once a woman came to the service of the Prophet صلی اللہ علیہ وسلم and said that her daughter's husband had passed away. Her daughter had pain in her eye and wanted to apply kohl. The Messenger of Allah صلی اللہ علیہ وسلم said: Among you, when a year was completed, she would throw a camel's dung; now the waiting period is four months and ten days. Hazrat Humaid (may Allah be pleased with him), the narrator, says that I asked Hazrat Zainab bint Umm Salamah (may Allah be pleased with her) what is meant by throwing a camel's dung? She replied that in the age of ignorance, after a woman's husband died, she would sit in the worst room, staying there for a year. When the year was completed, she would come out and throw a camel's dung behind her.