Sayyiduna Rifa’ah bin Rafi’ al-Zuraqi, may Allah be pleased with him, who was among the companions of the Prophet (peace and blessings of Allah be upon him), narrates: A man came while the Prophet (peace and blessings of Allah be upon him) was in the mosque. He performed prayer near the Prophet (peace and blessings of Allah be upon him). Then, after completing the prayer, he came to the Prophet (peace and blessings of Allah be upon him) and greeted him with salam. The Prophet (peace and blessings of Allah be upon him) said to him:“Repeat your prayer, for you have not prayed.”The narrator says that the man went back and performed the prayer as he had done before. Then he came to the Prophet (peace and blessings of Allah be upon him), so the Prophet (peace and blessings of Allah be upon him) said:“Repeat your prayer, for you have not prayed.”He said:“O Messenger of Allah! What should I do?”The Prophet (peace and blessings of Allah be upon him) said:“When you stand for prayer, face the qiblah and say the takbir, then recite Surah al-Fatihah, then recite whatever you wish after it. Then when you bow, place your palms on your knees and keep your back straight. When you raise your head, stand up straight until every bone returns to its place. When you prostrate, perform the prostration firmly, and when you raise your head, sit on your left thigh. Then do this in every rak’ah of your prayer.”