Sayyiduna Abdullah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Perform Hajj and Umrah consecutively, for indeed they remove poverty and sins just as a furnace removes impurities from iron, gold, and silver. And the reward for an accepted Hajj is nothing but Paradise."
And the explanation that a single good deed can be performed multiple times. It is not that the deed can only be performed once, as some ignorant people think.
Hadith Referenceصحيح ابن خزيمه / كتاب: المناسك / 2512