Does she owe a sacrifice (hady)? And can its price be sent to obtain a sacrifice voucher if a woman experiences bleeding during the Farewell Tawaf, then bathes and completes the Tawaf and the rituals of Hajj?

The Farewell Tawaf for the mufrid (individual pilgrim) and the qarin (pilgrim combining Hajj and Umrah) is a supererogatory act (sunnah mustahabbah), not obligatory. Leaving it does not necessitate a compensatory sacrifice (dam). The emission of blood nullifies ablution (wudu) and invalidates the Tawaf. One must perform istinja (cleansing of private parts) and wudu, and then complete the Tawaf, unless it is menstrual blood. If the blood is menstrual blood, she is prohibited from performing Tawaf until she becomes pure. Other Hajj rites, such as standing at Arafat, stoning, and staying overnight, do not require purity. Purity is a condition for the validity of Tawaf al-Ifadah according to the majority of scholars. According to the Hanafis, it is obligatory, and its omission can be compensated for by dam. If a wife performs Tawaf while menstruating, based on the Hanafi view, her Tawaf is valid, but it is more cautious to offer a sheep as a sacrifice.