Musnad Ahmad 30:2308

And the Messenger of Allah, may Allah bless him and grant him peace, said: "Excellent is the man Abu Bakr, excellent is the man Umar, excellent is the man Abu Ubaidah ibn al-Jarrah, excellent is the man Usayd ibn Hudayr, excellent is the man Thabit ibn Qays ibn Shammas, excellent is the man Mu'adh ibn Jabal, excellent is the man Mu'adh ibn Amr ibn al-Jamuh."