[Machine] The Prophet Muhammad ﷺ used to raise his hands when he begins the prayer, when he says the Takbeer (saying Allah Akbar) to go into the bowing position, and when he raises his head from the bowing position.
كَانَ رَسُولُ اللهِ ﷺ «إِذَا صَلَّى رَفَعَ يَدَيْهِ حِينَ يَسْتَفْتِحُ وَحِينَ يُكَبِّرُ لِلرُّكُوعِ وَحِينَ يَرْفَعُ رَأْسَهُ مِنَ الرُّكُوعِ»