“I heard him when he was among ten of the Companions of the Messenger of Allah ﷺ, one of whom was Abu Qatadah bin Ribʿi, saying: ‘I am the most knowledgeable of you about the prayer of the Messenger of Allah ﷺ. When he stood up for prayer, he stood up straight and raised his hands until they were parallel to his shoulders, then he said: Allahu Akbar. When he wanted to bow in Rukuʿ, he raised his hands until they were parallel to his shoulders. When he said Samiʿ Allahu liman hamidah (Allah hears those who praise Him), he raised his hands and stood up straight. When he stood up after two Rakʿah, he said Allahu Akbar and raised his hands until they were parallel to his shoulders, as he did when he started the prayer.’”  

سَمِعْتُهُ وَهُوَ فِي عَشَرَةٍ مِنْ أَصْحَابِ رَسُولِ اللَّهِ ﷺ أَحَدُهُمْ أَبُو قَتَادَةَ بْنُ رِبْعِيٍّ قَالَ أَنَا أَعْلَمُكُمْ بِصَلاَةِ رَسُولِ اللَّهِ ﷺ كَانَ إِذَا قَامَ فِي الصَّلاَةِ اعْتَدَلَ قَائِمًا وَرَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ ثُمَّ قَالَ اللَّهُ أَكْبَرُ وَإِذَا أَرَادَ أَنْ يَرْكَعَ رَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ فَإِذَا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ رَفَعَ يَدَيْهِ فَاعْتَدَلَ فَإِذَا قَامَ مِنَ الثِّنْتَيْنِ كَبَّرَ وَرَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ كَمَا صَنَعَ حِينَ افْتَتَحَ الصَّلاَةَ  

[Machine] I heard Abu Humaid Al-Sa'idi speak about ten companions of the Messenger of Allah ﷺ , including Abu Qatadah Al-Harith bin Rib'i. Abu Humaid said that when the Messenger of Allah ﷺ stood up for prayer, he would raise his hands until they reached his shoulders. Then he would say the takbir (Allahu Akbar) and mention the rest of the hadith. He described how the Prophet ﷺ would raise his hands during the bowing and when raising his head from it. And when he stood up from the two prostrations, he would say in each position until his hands reached his shoulders, and this is also mentioned in a narration by Ali bin Abi Talib from the Prophet ﷺ .  

سَمِعْتُ أَبَا حُمَيْدٍ السَّاعِدِيَّ فِي عَشَرَةٍ مِنْ أَصْحَابِ رَسُولِ اللهِ ﷺ فِيهِمْ أَبُو قَتَادَةَ الْحَارِثُ بْنُ رِبْعِيٍّ فَقَالَ أَبُو حُمَيْدٍ كَانَ رَسُولُ اللهِ ﷺ إِذَا قَامَ إِلَى الصَّلَاةِ رَفَعَ يَدَيْهِ حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ ثُمَّ يُكَبِّرُ وَذَكَرَ بَاقِيَ الْحَدِيثِ وَوَصَفَ رَفْعَ يَدَيْهِ عِنْدَ الرُّكُوعِ وَعِنْدَ رَفْعِ الرَّأْسِ مِنْهُ وَإِذَا قَامَ مِنَ الرَّكْعَتَيْنِ وَقَالَ فِي كُلِّ وَاحِدٍ مِنْهُمَا حَتَّى يُحَاذِيَ بِهِمَا مَنْكِبَيْهِ وَكَذَلِكَ هُوَ فِي رِوَايَةِ عَلِيِّ بْنِ أَبِي طَالِبٍ ؓ عَنِ النَّبِيِّ ﷺ