Sahih Bukhari Volume 1, Book 6, Hadith Number 326

Narated By Ibn ‘Abbas : A woman is al lowed to leave (go back home) if she gets menses (after Tawaf-AlIfada). Ibn ‘Umar formerly used to say that she should not leave but later on I heard him saying, “She may leave, since Allah’s Apostle gave them the permission to leave (after Tawaf-AlIfada.”