Musnad Ahmad 33:556

Hassan narrated to us, Ibn Lahi'ah narrated to us, Abu al-Zubayr narrated to us, he said: I asked Jabir, "When did the Messenger of Allah, peace and blessings of Allah be upon him, perform the stoning (Ramy)?" He said: "As for the first day, he did it at the time of Duha (mid-morning). And as for after that, it was when the sun passed its zenith (Zawal)."