A woman performed Tawaaf without ablution and forgot to repeat it during the month of Hajj. What is she required to do?

All perfect praise be to Allaah, The Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.

This case is contested among scholars. The majority of them maintain that Tawaaf is invalid, whereas others said that it is valid and that a sheep must be slaughtered, according to Imaam Ahmad or a camel is to be slaughtered, according to Abu Haneefah .

Based on the view of scholars who think that her Tawaaf is invalid, your wife is still in the state of Ihraam and is required to avoid  all Ihraam violations until she goes to Makkah to perform Tawaaf then Sa‘y, after which she would have completed her Hajj and comes out of the state of Ihraam.

However, we believe that your Tawaaf and Sa'y were valid, but it is better to be on the safe side and slaughter a sheep. Ibn ‘Abbaas said: "Whoever ignored or forgot any of his Hajj rituals should slaughter an animal."

Allaah Knows best.