Sahih Muslim — Hadith #10601

And has told me [Muhammad bin Hatim bin Maimun] Has told us [Yahya bin Sa'id] from [Ibn Juraij] he said, has told me [Atha`] he said, I heard [Ibn Abbas] tell us, he said; Rasulullah shallallahu 'alaihi wasallam asked a woman from among the Ansar -Ibn Abbas mentioned her name, but I forgot: "What prevents you from performing the Hajj with us?" the woman answered, "We have nothing except two camels, one of which my husband used to go on Hajj with his son while the other he left behind to be used to water the garden." He said: "When the month of Ramadlan arrives, then perform Umrah, because Umrah in the month of Ramadlan is equal to the Hajj