Musnad Ahmad 8:8

Abu Sa’id, the freed slave of Banu Hashim, narrated to us, ‘Abdullah ibn Lahi’ah narrated to us, Bukayr ibn ‘Abdullah ibn al-Ashajj narrated to us, that he heard Husayn ibn ‘Abd al-Rahman narrating that he heard Sa’d ibn Abi Waqqas saying: I heard the Messenger of Allah (ﷺ) saying: "There will be a tribulation in which the one sitting is better than the one standing, and the one standing in it is better than the one walking, and the one walking in it is better than the one running." He said: And I think he said: "And the one lying down in it is better than the one sitting."