[Machine] I heard the Messenger of Allah ﷺ say, "Allah does not look at the prayer of a servant who does not straighten his back during his bowing and prostration."
سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «لَا يَنْظُرُ اللهُ إِلَى صَلَاةِ عَبْدٍ لَا يُقِيمُ ظَهْرَهُ فِي رُكُوعِهِ وَسُجُودِهِ»