Musannaf Ibn Abi Shaybah

Hazrat Abdullah bin Qais narrates that Hazrat Abu Musa Ash'ari (may Allah be pleased with him) had a slave who was also the caretaker of his camels. He married a slave woman from Banu Jadha and gave her five camels as dowry. When Hazrat Abu Musa (may Allah be pleased with him) found out about this, he sent a message to Banu Jadha saying, "Return my slave and my property to me." They replied, "The slave is yours, but the property has now become the woman's dowry." This case was presented before Hazrat Uthman (may Allah be pleased with him), and he ruled that two-fifths of the property would be the woman's dowry and three-fifths would be given to Abu Musa Ash'ari.