On the 1st of Dhul-Hijja we set out with the intention of performing Hajj. Allah's Messenger (ﷺ) said, "Any
one who likes to assume the Ihram for `Umra he can do so. Had I not brought the Hadi with me, I
would have assumed the Ihram for `Umra. "Some of us assumed the Ihram for `Umra while the others
assumed the Ihram for Hajj. I was one of those who assumed the Ihram for `Umra. I got menses and
kept on menstruating until the day of `Arafat and complained of that to the Prophet. He told me to
postpone my `Umra, undo and comb my hair, and to assume the Ihram of Hajj and I did so. On the
night of Hasba, he sent my brother `Abdur-Rahman bin Abi Bakr with me to at-Tan`im, where I
assumed the Ihram for `Umra in lieu of the previous one. Hisham said, "For that (`Umra) no Hadi,
fasting or alms were required.
Sahih al-Bukhari Book 6, Hadith 22