Musannaf Ibn Abi Shaybah

Hazrat Imran bin Hadeer says that the wife of Yazid bin Shakhir was in a state of menstruation. She drank water from a vessel, and Yazid bin Shakhir performed ablution with the leftover water from that vessel.

Hasan al-Basri was asked about the ruling of a man performing ablution with the leftover water from which a menstruating woman drank, so he said, "There is no harm in it."

Hazrat Ata was asked about the water left over after a menstruating woman drank from it, whether it is permissible to perform ablution with it? He replied that there is no harm in it.

Hazrat Umar says that a woman's menstruation is not in her mouth (therefore, there is no harm in using what is left over by her).

Ibrahim did not consider it objectionable to use the water used by a menstruating woman for purification, but he regarded the leftover water from her drinking as disliked.

Hazrat Aamir says that there is no harm in using the leftover water of a menstruating woman, a person in a state of major ritual impurity (junub), or a polytheist.

Hazrat Saeed bin Al-Musayyib and Hasan Basri did not consider there to be any harm in using water left over by a woman.