Musannaf Ibn Abi Shayba 38:78

Ghundar narrated to us, from Shu'bah, from 'Amr ibn Murrah, from Abu Wa'il, who said: Abu Musa and Abu Mas'ud entered upon 'Ammar while he was mobilizing the people. They said, "We have not seen you do anything since you embraced Islam that is more hateful to us than your hastening in this matter." 'Ammar said, "I have not seen you two do anything since you embraced Islam that is more hateful to me than your lagging behind in this matter." He said: Then he clothed them both with a garment each, and they all went out to the prayer together.