It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once Sayyiduna Aqra’ bin Habis (may Allah be pleased with him) asked the Prophet (peace and blessings be upon him): O Messenger of Allah (peace and blessings be upon him)! Is performing Hajj every year obligatory? The Prophet (peace and blessings be upon him) said: "Hajj is obligatory only once in a lifetime, whatever is more than that will be voluntary Hajj."