Musannaf Ibn Abi Shayba 3:5023

Abu Bakr narrated to us, he said: Ibn ‘Uyaynah narrated to us, from al-Zuhri, from Sa‘id ibn al-Musayyib, from Abu Hurayrah, in a narration, he said: When you come to the prayer, do not come to it while you are running. Come to it while upon you is tranquility. So whatever you reach, pray, and whatever you miss, complete it.