Musannaf Ibn Abi Shaybah

Hazrat Zuhri says regarding the woman who gets her period after completing some circuits of Tawaf, that she should wait, and when her menstrual days are over, she should perform the Tawaf again from the beginning.

Hazrat Ata says that if a woman gets her period after performing three or more circuits, then that is sufficient for her.

Ibrahim says regarding the woman who gets her period after completing three circuits of Tawaf, that the circuits she has completed will be counted for her.

Ibrahim was asked: If a man is performing Tawaf and some circuits remain, and he experiences hadath (a state of impurity), or if a woman gets her period during Tawaf, from where should they resume Tawaf? He replied: If hadath or menstruation occurred after completing some circuits, then resume from after that point.

Hazrat Ata says that in my opinion, performing the Tawaf again from the beginning is more preferable, and if he continues from where he left off, then there is no harm in it.