in what he wrote in answer to some queries of Muhammad b. Sinan, said, 'Looking at the hair of veiled women with husbands, and all women besides them is prohibited, for what it arouses in men, and for what that arousal engenders in terms of corruption and embarking upon what is not permitted and not good. And also, what is similar to hair, except those women whom Allah mentions: 'As for women advanced in years? ??? as there is no problem in looking at the hair of their like.'