Yahya related to me from Malik that he had heard that Umm Salama,the wife of the Prophet, may Allah bless him and grant him peace, saidto a woman in mourning for her husband whose eyes were troubling herand the pain had become very strong, "Apply jala kohl at night andwipe it off in the day."
USC-MSA web (English) reference: Book 29, Hadith 105
Arabic reference: Book 29, Hadith 1270