"When the Prophet ﷺ started to pray he said the takbir and raised his hands, and when he bowed, and after bowing, but he did not raise them between the two prostrations."  

كَانَ النَّبِيُّ ﷺ إِذَا افْتَتَحَ الصَّلاَةَ كَبَّرَ وَرَفَعَ يَدَيْهِ وَإِذَا رَكَعَ وَبَعْدَ الرُّكُوعِ وَلاَ يَرْفَعُ بَيْنَ السَّجْدَتَيْنِ