Rifa bin Rafi reported,

While the Messenger of Allah ﷺ was sitting with us gathered around him, a man came in, faced the qiblah, and prayed. When he finished his prayer, he came over and greeted the Messenger of Allah ﷺ and the people present.The Messenger of Allah ﷺ replied, "And upon you. Go back and pray, for you have not prayed."So the man went and prayed again. The Messenger of Allah ﷺ watched his prayer closely but could not tell what was wrong with it. When the man finished, he came back and greeted the Messenger of Allah ﷺ and the people.The Messenger of Allah ﷺ said, "And upon you. Go back and pray, for you have not prayed."This happened two or three times, until the man asked, "Messenger of Allah, what fault did you find in my prayer?"The Messenger of Allah ﷺ said, "None of you has truly completed his prayer until he performs ablution thoroughly, as Allah has commanded him. He washes his face, and his hands up to the elbows, and wipes his head, and washes his feet up to the ankles. Then he glorifies Allah , praises Him, and exalts Him."Hammam said, "I also heard him say, 'and praises Allah, and exalts Him, and glorifies Him.'" He added, "I heard him say it both ways."He continued, "Then he recites whatever is easy for him from the Quran, from what Allah has taught him and permitted him to recite. Then he says the takbir and bows until his joints settle and become at ease. Then he says, 'Allah hears whoever praises Him,' and then he straightens up until his back is upright. Then he says the takbir and prostrates until his face is firmly placed."Hammam said, "I also heard him say, 'his forehead,' until his joints settle and become at ease."Then he says the takbir and rises until he is sitting upright on his seat with his back straight. Then he says the takbir and prostrates again until his face is firmly placed and his body is at ease. If he does not do it this way, his prayer is not complete."

أخبرنا محمد بن عبد الله بن يزيد المقرئ أبو يحيى بمكة وهو بصري قال حدثنا أبي قال حدثنا همام قال حدثنا إسحق بن عبد الله بن أبي طلحة أن علي بن يحيى بن خلاد بن مالك بن رافع بن مالك حدثه عن أبيه

عن عمه رفاعة بن رافع قال

بينما رسول الله ﷺ جالس ونحن حوله إذ دخل رجل فأتى القبلة فصلى فلما قضى صلاته جاء فسلم على رسول الله ﷺ وعلى القوم فقال له رسول الله ﷺ وعليك اذهب فصل فإنك لم تصل فذهب فصلى فجعل رسول الله ﷺ يرمق صلاته ولا يدري ما يعيب منها فلما قضى صلاته جاء فسلم على رسول الله ﷺ وعلى القوم فقال له رسول الله ﷺ وعليك اذهب فصل فإنك لم تصل فأعادها مرتين أو ثلاثا فقال الرجل يا رسول الله ما عبت من صلاتي فقال رسول الله ﷺ إنها لم تتم صلاة أحدكم حتى يسبغ الوضوء كما أمره الله عز وجل فيغسل وجهه ويديه إلى المرفقين ويمسح برأسه ورجليه إلى الكعبين ثم يكبر الله عز وجل ويحمده ويمجده قال همام وسمعته يقول ويحمد الله ويمجده ويكبره قال فكلاهما قد سمعته يقول قال ويقرأ ما تيسر من القرآن مما علمه الله وأذن له فيه ثم يكبر ويركع حتى تطمئن مفاصله وتسترخي ثم يقول سمع الله لمن حمده ثم يستوي قائما حتى يقيم صلبه ثم يكبر ويسجد حتى يمكن وجهه وقد سمعته يقول جبهته حتى تطمئن مفاصله وتسترخي ويكبر فيرفع حتى يستوي قاعدا على مقعدته ويقيم صلبه ثم يكبر فيسجد حتى يمكن وجهه ويسترخي فإذا لم يفعل هكذا لم تتم صلاته