If a woman nurses from herself (her breasts), does she become unlawful for her husband?

A woman is not forbidden to her husband if she breastfeeds him from her breast. This is for two reasons: First, the suckling of an adult is not considered valid according to the majority of scholars. Second, her being forbidden by such an act would open a wide door to great mischief, which is for the woman to use this as a pretext to get rid of her husband.