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.
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."
Hadith Referenceصحيح ابن خزيمه / كتاب: المناسك / 2512