Prophet (AS) didn't Raise Hands Before and After Ruku

 بسم الله الرحمن الرحيم

اللهم صلى على محمد وعلى آل محمد

Another proof for our Hanafi practice of not making Raf’ ul-Yadain (raising the hands) except at the beginning of the Salah is the narration of sayyidina Ibn Umar رضى الله عنهما

رَأَيْتُ رَسُولَ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ إِذَا افْتَتَحَ الصَّلَاةَ رَفَعَ ‌يَدَيْهِ حَذْوَ مَنْكِبَيْهِ وَإِذَا أَرَادَ أَنْ يَرْكَعَ وَبَعْدَ مَا يَرْفَعُ رَأْسَهُ مِنَ الرُّكُوعِ فَلَا يَرْفَعُ وَلَا بَيْنَ السَّجْدَتَيْنِ

I saw the Messenger of Allah صلى الله عليه وسلم when he started the Salah he raised his hands level with his shoulders, and when he wanted to bow and after raising his head from bowing he did not raise them, nor between the two prostrations. (Musnad al-Humaidi, #614)