Musnad Abu Ya'la al-Mawsili 152:210

Abu Khaythama narrated to us, Abd al-Rahman narrated to us, from Sufyan, from al-A'mash, from Abu Wa'il, from Abdullah, from the Prophet (peace and blessings of Allah be upon him), who said: "It is not appropriate for anyone to say that I am better than Yunus ibn Matta."