Musnad Abu Ya'la al-Mawsili 250:1

Amr al-Naqid narrated to us, Amr ibn Uthman al-Kilabi narrated to us, Musa ibn A'yan narrated to us, from Ma'mar ibn Rashid, from Muhammad ibn Abdullah ibn Abi Ya'qub, from Bishr ibn Shughaf, from Abdullah ibn Salam, who said: The Messenger of Allah (ﷺ) said: "I am the master of the children of Adam on the Day of Resurrection, and there is no boast. I am the first for whom the earth will split open, and the first intercessor and the first whose intercession will be accepted. In my hand will be the banner of praise, and under me will be Adam and those below him."