[Machine] I heard Abu Humaid say that the Messenger of Allah ﷺ, when he stood up for prayer, would face the qiblah and raise his hands until they were level with his shoulders. He would then say "Allahu Akbar". When he went into ruku', he would say "Allahu Akbar" while he was going into ruku' and raise his hands. He would then straighten his back, without making it stiff or flexing it too much. He would then raise his head and say "Sami Allahu liman hamidah". He would then raise his hands until they were level with his shoulders, and he would straighten himself until all his limbs were in the correct position. He would then do the same in the second raka'ah, until he stood up from the two raka'at and said "Allahu Akbar" and raised his hands as he had done at the beginning of the prayer. When it came time for the prostration, he would raise his head and sit cross-legged.
سَمِعْتُ أَبَا حُمَيْدٍ يَقُولُ كَانَ رَسُولُ اللهِ ﷺ إِذَا قَامَ إِلَى الصَّلَاةِ اسْتَقْبَلَ الْقِبْلَةَ ثُمَّ رَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ ثُمَّ يَقُولُ اللهُ أَكْبَرُ وَإِذَا رَكَعَ كَبَّرَ حِينَ يَرْكَعُ وَيَرْفَعُ يَدَيْهِ ثُمَّ عَدَلَ صُلْبَهُ فَلَمْ يُصَوِّبْهُ وَلَمْ يُقَنِّعْهُ ثُمَّ رَفَعَ رَأْسَهُ فَقَالَ سَمِعَ اللهُ لِمَنْ حَمِدَهُ ثُمَّ رَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ ثُمَّ اعْتَدَلَ حَتَّى جَاءَ كُلُّ عُضْوٍ إِلَى مَوْضِعِهِ مُعْتَدِلًا ثُمَّ يَفْعَلُ فِي الرَّكْعَةِ الْأُخْرَى مِثْلَ ذَلِكَ حَتَّى إِذَا قَامَ مِنَ الرَّكْعَتَيْنِ كَبَّرَ وَرَفَعَ يَدَيْهِ كَمَا صَنَعَ فِي ابْتِدَاءِ الصَّلَاةِ حَتَّى إِذَا كَانَتِ السَّجْدَةُ الَّتِي تَكُونُ حِلَّةَ الصَّلَاةِ رَفَعَ رَأْسَهُ فِيهَا وَقَعَدَ مُتَوَرِّكًا