Musnad Ahmad 1301:18

Muhammad ibn Ubayd narrated to us, he said: Al-A’mash narrated to us, from Salim ibn Abi al-Ja’d, from Umm al-Darda’, she said: Abu al-Darda’ entered upon me while he was angry. I said: "Who has angered you?" He said: "By Allah, I do not recognize anything among them of the affair of Muhammad, peace and blessings of Allah be upon him, except that they pray together."