Sayyiduna Jabir (may Allah be pleased with him) said: I saw the Prophet (peace and blessings be upon him) stoning the Jamrah from his mount on the day of sacrifice, and he (peace and blessings be upon him) was saying: "Learn your rites from me, for I do not know; perhaps I will not perform Hajj after this Hajj of mine."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9552