Salim narrated from his father (Sayyiduna Ibn Umar, may Allah be pleased with them both) that when the Prophet Muhammad (peace and blessings be upon him) began the prayer, he would raise his hands up to his shoulders, then when he bowed (for ruku‘), he would do the same (raise his hands), then when he raised his head from ruku‘, he would raise his hands in the same way and say «سَمِعَ اللهُ لِمَنْ حَمِدَهُ، اللّٰهُمَّ رَبَّنَا وَلَكَ الْحَمْدُ» , and he would not do so in prostrations (i.e., he would not raise his hands in sujood).