Then we heard `Aisha brushing her teeth whereupon `Urwa said, "O mother of the believers! Don't you hear what Abu `Abdur-Rahman is saying? He is saying that the Prophet performed four `Umra, one of which was in Rajab." `Aisha said, "The Prophet did not perform any `Umra but he (i.e. Ibn `Umar) witnessed it. And he (the Prophet) never did any `Umra in (the month of) Rajab."