Sunan an-Nasa'i 1314

Suwayd ibn Nasr informed us; he said: ‘Abdullah ibn al-Mubarak narrated to us, from Dawud ibn Qays, who said: ‘Ali ibn Yahya ibn Khallad ibn Rafi‘ ibn Malik al-Ansari narrated to me; he said: My father narrated to me, from an uncle of his who had fought at Badr, who said: I was sitting with the Messenger of Allah (peace and blessings be upon him) in the mosque when a man entered and prayed two rak‘ahs. Then he came and greeted the Prophet (peace and blessings be upon him). The Prophet had been watching him during his prayer. He returned his greeting, then said to him, “Go back and pray, for you have not prayed.” The man went back and prayed, then came and greeted the Prophet. He returned his greeting, then said, “Go back and pray, for you have not prayed,” until it was the third or fourth time. The man said, “By the One who sent down the Book to you, I have exerted myself and tried hard. Show me and teach me.” He said: “When you intend to pray, perform ablution and do it well. Then face the Qiblah and say the takbir. Then recite, then bow until you are at ease in your bowing. Then rise until you are standing upright. Then prostrate until you are at ease in your prostration. Then rise until you are at ease sitting. Then prostrate until you are at ease in your prostration. Then rise. When you have completed your prayer in this way, it is complete; whatever you omit from this diminishes your prayer.”