Sayyiduna Husayn bin Awf (may Allah be pleased with him) narrates: I said: O Messenger of Allah, Hajj has become obligatory upon my father, and he cannot perform Hajj without support. The narrator said: He (peace and blessings be upon him) remained silent for a while, then said: "Perform Hajj on behalf of your father."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3536