When the Messenger of Allah ﷺ entered the mosque, a man also entered it and prayed. He then came and saluted the Messenger of Allah ﷺ. The Messenger of Allah ﷺ returned the salutation and said to him: Go back and pray, for you have not prayed. The man returned and prayed as he prayed before. He then came to prophet ﷺ and saluted him. The Messenger of Allah ﷺ said to him: “ And upon you be peace. “ Go back and pray, for you have not prayed. He did so three times. Then the man said: By Him who has sent you(as a Prophet) with truth; I cannot do better than this; so teach me. He said: When you get up to pray, utter the takbir(Allah is most great); then recite a convenient portion of the Qur’an; then bow and remain quietly in that position; then sit and remain quietly in that position; then raise yourself and stand erect: then prostrate yourself and remain quietly in that position; then sit and remain quietly in that position; then do that throughout all your prayer. Abu Dawud said: Al-Qa’nabi reported this tradition from Sa’id b. Abi Sa’Id on the authority of Abu Hurairah. This version has the wording in the last: When you do this, then your prayer is completed. If you omit anything form this, you omit that much from your prayer. This version also has the wording: when you get up for praying, perform the abulation perfectly. (Using translation from Abū Dāʾūd 856)   

أَنَّ رَسُولَ اللهِ ﷺ دَخَلَ الْمَسْجِدَ فَدَخَلَ رَجُلٌ فَصَلَّى ثُمَّ جَاءَ فَسَلَّمَ عَلَى رَسُولِ اللهِ ﷺ فَرَدَّ رَسُولُ اللهِ ﷺ عَلَيْهِ السَّلَامَ وَقَالَ ارْجِعْ فَصَلِّ فَإِنَّكَ لَمْ تُصَلِّ قَالَ فَرَجَعَ الرَّجُلُ فَصَلَّى كَمَا يُصَلِّي ثُمَّ جَاءَ إِلَى النَّبِيِّ ﷺ فَسَلَّمَ عَلَيْهِ فَقَالَ لَهُ رَسُولُ اللهِ ﷺ وَعَلَيْكَ السَّلَامُ ارْجِعْ فَصَلِّ فَإِنَّكَ لَمْ تُصَلِّ حَتَّى فَعَلَ ذَلِكَ ثَلَاثَ مِرَارٍ فَقَالَ الرَّجُلُ وَالَّذِي بَعَثَكَ بِالْحَقِّ مَا أُحْسِنُ غَيْرَ هَذَا فَعَلِّمْنِي قَالَ إِذَا قُمْتَ إِلَى الصَّلَاةِ فَكَبِّرْ ثُمَّ اقْرَأْ مَا تَيَسَّرَ مَعَكَ مِنَ الْقُرْآنِ ثُمَّ ارْكَعْ حَتَّى تَطْمَئِنَّ رَاكِعًا ثُمَّ ارْفَعْ حَتَّى تَعْتَدِلَ قَائِمًا ثُمَّ اسْجُدْ حَتَّى تَطْمَئِنَّ سَاجِدًا ثُمَّ ارْفَعْ حَتَّى تَطْمَئِنَّ جَالِسًا ثُمَّ افْعَلْ ذَلِكَ فِي صَلَاتِكَ كُلِّهَا أَخْرَجَاهُ مِنْ حَدِيثِ يَحْيَى الْقَطَّانِ  

The Messenger of Allah ﷺ commanded me to announce that prayer is not valid but with the recitation of Fatihat al-kitab and something more. (Using translation from Abū Dāʾūd 820)   

أَمَرَنِي رَسُولُ اللهِ ﷺ أَنْ أُنَادِيَ لَا صَلَاةَ إِلَّا بِقُرْآنٍ بِفَاتِحَةِ الْكِتَابِ فَمَا زَادَ  

[Machine] We asked Khabbab, "Did the Messenger of Allah ﷺ recite in the first and third units of prayer?" He replied, "Yes." We asked, "How did you know that?" He said, "By the movement of his beard."  

سَأَلْنَا خَبَّابًا أَكَانَ رَسُولُ اللهِ ﷺ يَقْرَأُ فِي الْأُولَى وَالْعَصْرِ؟ قَالَ نَعَمْ قُلْنَا بِأَيِّ شَيْءٍ كُنْتُمْ تَعْرِفُونَ ذَلِكَ قَالَ بِاضْطِرَابِ لِحْيَتِهِ