Issue 807...
Issue 807: When a woman invalidates the contract due to inability of the man to engage in sexual intercourse with her, it is obligatory for the man to pay half of the dowry (Mahr) to her. If the woman or man invalidates the contract due to one of the other aforementioned defects, when no intercourse has occurred between them, nothing is obligatory upon the man. As for when sexual intercourse had occurred, then, the obligatory precaution is that he gives the dowry, all of it.
Women With Whom it is Forbidden to Marry Issue 808: The marriage of a man with his close relative (Mahram) is forbidden. The close relatives (Mahram) are: the mother, the daughter, the sister, the paternal aunt, the maternal aunt, the niece (daughter of the brother and daughter…