I asked Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as) about a man who had three unmarried daughters. He married one of them to a man but did not specify which daughter to the husband or the witnesses. The husband had already agreed upon a dowry for her. When the time came for the husband to consummate the marriage, he was informed that the bride was the eldest daughter. However, the husband said to the father, "I only intended to marry your youngest daughter." Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as) replied: "If the husband had seen all the daughters and had not specified one of them, then the decision is based on the father's word. However, the father must, before Allah (swt) (Glorified and Exalted), give the husband the daughter he intended to marry off at the time of the marriage contract. But if the husband had not seen all the daughters and no specific one was identified during the marriage contract, then the marriage is invalid."