الكافي- ط الاسلامية, volume 5, page 443

11. Ibn Mahbub has narrated from abu Ayyub al-Khazzaz from ibn Muskan from al-Halabiy who has said the following: “This is concerning my question before abu ‘Abd Allah (a.s.), about the case of a man who is breastfed when a child by a woman; if it is lawful for him to marry her sister because of breastfeeding from her mother’s side. He (the Imam) said, ‘If the two women are breastfed by one woman from the milk of one “impregnating agent” (husband), then it is unlawful but if the two women are breastfed by one woman with milk of two “impregnating agents” (husbands), then it is not unlawful.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

1. Ali ibn Ibrahim has narrated from his father from ibn abu ‘ Umayr from Hammad from al-Halabiy who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Breastfeeding after weaning is not effective/”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

2. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Aban ibn ‘Uthman from al-Fadl ibn ‘ Abd al-Malik who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Breastfeeding is effective before completion of two years of a child before weaning him.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

3. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from ibn abu Nasr from Hammad ibn ‘Uthaman who has said the following: “I once heard abu ‘Abd Allah (a.s.), saying, ‘Breastfeeding after weaning is not effective.’ I then said, ‘I pray to Allah to keep my soul in service for your cause, what is al-Fatam (weaning)?’ He (the Imam) said, ‘It is the two years that Allah, most Majestic, most Glorious, has mentioned (in His book).’ (2:233)”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

4. Ali ibn Ibrahim has narrated from his father and a number of our people have narrated from Sahl ibn Ziyad all from ibn abu Najran from ‘Asem ibn Hamid from Muhammad ibn Qays who has said the following: “I once asked him (the Imam) (a.s.), about the case of a woman who drained her milk and made her husband to drink it so that she could become unlawful to him. He (the Imam) said, ‘He keeps her and makes her feel a backache.’” (Such expression is used for a flogging implemented by a judicial body.)

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

5. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Mansur ibn Yunus from Mansur ibn Hazim who has said the following: “Abu ‘Abd Allah (a.s.), has said that the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, ‘Breastfeeding after weaning is not effective, continuous fasting is not valid, one is not an orphan after experiencing wet-dream, vowing to remain silent for the whole day until the night is not valid, going back to disbelief after migrating to Islam is not permissible, migration after the conquest is not applicable, divorce before marriage is not valid, setting free of slaves before owning a slave is not valid, oath by the son against his father or of a slave against his master, or a wife against her husband is not valid, a vow for unlawful matters is not valid. Swearing to disregard good relation with relatives is not permissible. The meaning of the words of the Messenger of Allah, ‘Breastfeeding after weaning is not effective’ means that if a boy drinks the milk of a woman after he is weaned, such breastfeeding does not make marriage unlawful.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.