To raise both hands while saying the Takbir [on opening As-Salat (the prayer)], and while bowing and on raising up the head (after bowing)

Narrated `Abdullah bin `Umar:

I saw that whenever Allah's Messenger (ﷺ) stood for the prayer, he used to raise both his hands up to the shoulders, and used to do the same on saying the Takbir for bowing and on raising his head from it and used to say, "Sami`a l-lahu liman hamidah". But he did not do that (i.e. raising his hands) in prostrations.

حَدَّثَنَا مُحَمَّدُ بْنُ مُقَاتِلٍ، قَالَ أَخْبَرَنَا عَبْدُ اللَّهِ، قَالَ أَخْبَرَنَا يُونُسُ، عَنِ الزُّهْرِيِّ، أَخْبَرَنِي سَالِمُ بْنُ عَبْدِ اللَّهِ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، رضى الله عنهما قَالَ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم إِذَا قَامَ فِي الصَّلاَةِ رَفَعَ يَدَيْهِ حَتَّى يَكُونَا حَذْوَ مَنْكِبَيْهِ، وَكَانَ يَفْعَلُ ذَلِكَ حِينَ يُكَبِّرُ لِلرُّكُوعِ، وَيَفْعَلُ ذَلِكَ إِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ وَيَقُولُ ‏

‏ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ ‏

‏‏.‏ وَلاَ يَفْعَلُ ذَلِكَ فِي السُّجُودِ‏.‏

Narrated Abu Qilaba:

I saw Malik bin Huwairith saying Takbir and raising both his hands (on starting the prayers and raising his hands on bowing and also on raising his head after bowing. Malik bin Huwairith said, "Allah's Messenger (ﷺ) did the same."

حَدَّثَنَا إِسْحَاقُ الْوَاسِطِيُّ، قَالَ حَدَّثَنَا خَالِدُ بْنُ عَبْدِ اللَّهِ، عَنْ خَالِدٍ، عَنْ أَبِي قِلاَبَةَ، أَنَّهُ رَأَى مَالِكَ بْنَ الْحُوَيْرِثِ إِذَا صَلَّى كَبَّرَ وَرَفَعَ يَدَيْهِ، وَإِذَا أَرَادَ أَنْ يَرْكَعَ رَفَعَ يَدَيْهِ، وَإِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ رَفَعَ يَدَيْهِ، وَحَدَّثَ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم صَنَعَ هَكَذَا‏.‏