Ibrahim Nakha'i (may Allah have mercy on him) said: "If a man marries a woman who is his mahram and consummates the marriage, the woman will receive the dowry; if he does not consummate, she will not receive the dowry, and separation will be enforced between them." And Hammad (may Allah have mercy on him) said: "Whatever the woman has taken is hers."

Ibrahim Nakha'i (may Allah have mercy on him) said: "If consummation has not taken place, then the dowry will be void, and if consummation has taken place, then the woman will receive the dowry that was stipulated."

Hasan al-Basri (may Allah have mercy on him) said: "If consummation has not taken place, then the woman has no right; and if consummation has taken place, then whatever she has received is her right."

Hazrat Aamir Sha'bi (may Allah have mercy on him) said: "There is nothing for the woman, whether intercourse has taken place or not. Does a man give a dowry to his sister or mother?"

Hazrat Mak'hool (may Allah have mercy on him) said: "If a person marries a woman and later it is found that she is his foster sister, then if consummation has not taken place, the marriage is invalid and the wealth (dowry) will be returned. But if consummation has taken place or he has seen from her what a man sees from his wife, then the full dower will be obligatory. And if he had divorced her and given half the dower, and later the reality became known, then whatever the woman has taken she will return. The waiting period (‘iddah) will be the same as that of a divorced woman, and they will not inherit from each other."

Sayyiduna Ali (may Allah be pleased with him) said: "If a man marries his foster-sister and gives her the dowry but does not consummate the marriage, then the woman should return the wealth and the two should be separated."