Musnad Ahmad 788:194

Yazid narrated to us, Mas'udi informed us, and Hashim—meaning Ibn al-Qasim—narrated to us, Mas'udi narrated to us, from Sa'id ibn Abi Burdah, from his father, from his grandfather Abu Musa, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Indeed, my nation is a nation that has been shown mercy; there is no punishment upon it in the Hereafter. Its punishment is only in the world: killing, distresses, and earthquakes." Abu al-Nadr said: "With earthquakes, killing, and tribulations."