Sahih al-Bukhari 6251

Sa'id ibn Abi Sa'id al-Maqburi related that Abu Hurayra said, "A man entered the mosque while the Messenger of Allah, may Allah bless him and grant him peace, was in a corner of the mosque. He prayed and then came and greeted him. The Messenger of Allah, may Allah bless him and grant him peace, said to him, 'And upon you be peace. Go and back and pray. You have not prayed.' He prayed and then came and greeted and the Prophet, may Allah bless him and grant him peace, said, 'And upon you be peace. Go and back and pray. You have not prayed.' The second time or the time after that he said, 'Teach me, Messenger of Allah.' He said, 'When you stand for the prayer, go wudu' properly, then face the qibla and say the takbir. Then recite what is easy for you that you know of the Qur'an and then do ruku' until you are at rest in your ruku'. Then stand back up until you are completely upright. Then go into sajda until you are at rest in your sajda. Then sit back until you are at rest in the sitting position. Then go into sajda until you are at rest in your sajda. Then sit back until you are at rest in the sitting position. Do that throughout all of your prayer.'" Abu Usama said in the end, "Until you are completely upright.'" Another isnad from Abu Hurayra in which he said that the Prophet, may Allah bless him and grant him peace, said, "Then you come up until you are at rest in the sitting position."