Musnad Abu Ya'la al-Mawsili 244:10

Hadb ibn Khalid narrated to us, Hammad ibn Salamah narrated to us, from Sa'id al-Jurayri, from Abdullah ibn Shaqiq, from Amr ibn al-Aas, who said: It was said, "O Messenger of Allah, which of the people is most beloved to you?" He said, "Aisha." He said, "From the men?" He said, "Abu Bakr." He said, "Then who?" He said, "Then Abu Ubaydah ibn al-Jarrah."