Those who said: istibra of a slave woman is by one menstrual period

Makhul said: I said to al-Zuhri: Do you not know that Sayyiduna Umar, until his term ended, and Sayyiduna Ibn Mas'ud in Iraq, until his term ended, and Sayyiduna Uthman bin Affan (may Allah be pleased with them) used to hold that a slave woman's freedom from pregnancy is established by one menstruation, whereas Sayyiduna Mu'awiyah (may Allah be pleased with him) held that one should wait for two menstruations.

Al-Zuhri said: And I will add another for you: Sayyiduna Ubadah bin al-Samit (may Allah be pleased with him).

Sayyiduna Abdullah (bin Mas'ud) (may Allah be pleased with him) said: A slave woman's freedom from pregnancy is established by one menstruation.

Silah, Qutham and Najiyah said: Whoever buys a slave woman should not go near her until she has menstruated.

Sayyiduna Ibn Umar (may Allah be pleased with them both) said concerning a slave woman with whom her master has had intercourse: When she is sold or set free, the certainty that her womb is clear is to be established by one menstruation.

Mughirah said: I asked Ibrahim: If a man buys a slave woman who has a husband, what is the ruling? He said: He is to make certain that her womb is empty by one menstruation.

Sayyiduna Ibn Umar (may Allah be pleased with them both) said: Whoever buys a slave woman should not go near her until he has made certain, by one menstruation, that her womb is empty.

Ibrahim also considered one menstruation sufficient.

Sayyiduna Ali (may Allah be pleased with him) said: The certainty that her womb is empty is to be established by one menstruation.

Makhul said: When a slave woman is bought, the certainty that she is clear is to be established by one menstruation.

Ata and Tawus said: The certainty that a slave woman is free of pregnancy is to be established by one menstruation.

Sayyiduna Umar (may Allah be pleased with him) said: Whoever buys a slave woman should wait one menstruation for her to be confirmed free of pregnancy.