Humaid bin Nafi narrated that :
Zainab said: And I heard my mother, Umm Salamah said: 'A woman came to the Messenger of Allah and she said: O Messenger of Allah! My daughter's husband died, and she is suffering from an eye ailment, so can she use Kohl? the Messenger of Allah said: No two or three time. Each time (she asked) he said no. Then he said: It is just a mater of four months and ten (days). During Jahliyyah one of you would throw a clump of camel dung when one year passed.