[Machine] The Prophet, ﷺ , used to spread his back when he bowed down, and when he prostrated, he would place his fingers towards the qibla (direction of prayer), and then he would spread them apart.
كَانَ النَّبِيُّ ﷺ إِذَا رَكَعَ بَسَطَ ظَهْرَهُ وَإِذَا سَجَدَ وَجَّهَ أَصَابِعَهُ قِبَلَ الْقِبْلَةِ فَتَفَلَّجُ