Hammad informed us, he narrates from Hisham bin Urwah, who narrated from his father (Urwah bin Zubair) this (aforementioned hadith).

Qasim bin Muhammad and Urwah bin Zubair say: If a person has four wives and he gives an irrevocable divorce to any one of them, he may marry (a fourth woman) whenever he wishes; he does not have to wait for the (‘iddah) waiting period of his former wife to end.

Sayyiduna Umar (may Allah be pleased with him) said: "A slave man can (at most) marry two women at the same time, and he can give two divorces. The waiting period (‘iddah) of a slave woman is two menstrual cycles, and if she does not menstruate, then it will be two months." (The narrator is in doubt, perhaps the words are:) "It will be one and a half months."

Imam Ja'far al-Sadiq (may Allah have mercy on him) narrates from his father (Imam Baqir, may Allah be pleased with him), who narrates from his grandfather (Imam Zain al-Abidin, may Allah have mercy on him), who narrates the following statement of Imam Husayn (may Allah be pleased with him): Sayyiduna Ali (may Allah be pleased with him), regarding a person who bought a slave-girl, had intercourse with her, and then discovered a defect in her, said: "The slave-girl will remain with that person, and the price will be reduced according to the extent of the defect." Sayyiduna Ali (may Allah be pleased with him) said: "If the ruling were as some people say, then that person would return the woman and also pay 'aqr (the compensation paid in case of intercourse due to doubt), and this would resemble hiring. Thus, it would be as if, when he had intercourse with the slave-girl, he had already seen the defect and then paid 'aqr as compensation. But (the ruling is) when he has intercourse with the slave-girl, she becomes his, and the price is reduced according to the defect."

Imam Ja'far al-Sadiq (may Allah have mercy on him) narrates from his father (Imam Baqir, may Allah be pleased with him): Sayyiduna Ali (may Allah be pleased with him) said: "When a person buys a slave girl, then has intercourse with her, and after having intercourse finds a defect in her, he will take back a portion of the price according to the defect." This narration is mursal.

Imam Ja'far al-Sadiq (may Allah have mercy on him) narrates from his father (Imam Muhammad al-Baqir, may Allah have mercy on him), who narrates from Imam Zayn al-Abidin (may Allah have mercy on him), that Sayyiduna Ali (may Allah be pleased with him) said: "(The buyer) will not return (the slave-girl with a defect), rather, the amount by which the price is reduced due to the defect will be returned to him." This narration is also mursal.

Sayyiduna Umar (may Allah be pleased with him) said: "If the slave girl is previously married, then the buyer will return half of a tenth (i.e., one twentieth of the original price), and if she is a virgin, then a tenth (i.e., one tenth of the original price) will be returned." The narrator named 'Amir did not witness the time of Sayyiduna Umar (may Allah be pleased with him).

Sayyiduna Ali (may Allah be pleased with him) said: "When a man (the buyer) has intercourse with the slave girl, then the transaction is finalized. But if the buyer finds a defect in her before having intercourse, then he has the option: if he wishes, he may keep her, and if he wishes, he may return her." This narration is mursal.

Raja bin Haywah narrates: It was asked from Sayyiduna Amr bin al-As (may Allah be pleased with him) about the waiting period (‘iddah) of an umm walad, so he replied: "Do not mix up religious rulings before us. If she were considered a slave-girl, then her waiting period would be like that of a free woman." The same narration is also transmitted with another chain as a mawquf narration up to Sayyiduna Amr bin al-As (may Allah be pleased with him). Qatadah and Matar have transmitted this narration as a marfu‘ hadith, but its mawquf status is correct. The narrator named Qabeesah did not hear hadiths from Sayyiduna Amr bin al-As (may Allah be pleased with him).

Sayyiduna Amr ibn al-As (may Allah be pleased with him) said: "Do not confuse the command of the Sunnah of our Noble Prophet (peace and blessings of Allah be upon him) before us; the waiting period (‘iddah) of an umm walad is like the waiting period of a widow, that is, four months and ten days."