It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that (once the Prophet صلی اللہ علیہ وسلم was delivering a sermon to us and said: "O people! Hajj has been made obligatory upon you." Upon hearing this,) Aqra’ bin Habis stood up and said: "O Messenger of Allah صلی اللہ علیہ وسلم ! Is Hajj obligatory every year?" The Prophet صلی اللہ علیہ وسلم said: "If I had said yes, it would have become obligatory upon you every year, but if that had happened, you would not have been able to do it. Hajj is obligatory only once in a lifetime; whatever is more than that is voluntary Hajj."