[Machine] The Messenger of Allah, ﷺ , used to pray four units before Dhuhr (noon prayer) and then would add two units after it and two units before Fajr (dawn prayer). He would say, "What excellent two chapters (surahs) they are that you recite in the two units before Fajr. Say: O disbelievers, and say: Allah is One."
كَانَ رَسُولُ اللهِ ﷺ يُصَلِّي أَرْبَعًا قَبْلَ الظُّهْرِ وَقَالَ يَزِيدُ مَرَّةً رَكْعَتَيْنِ بَعْدَهَا وَرَكْعَتَيْنِ قَبْلَ الْفَجْرِ وَكَانَ يَقُولُ نِعْمَ السُّورَتَانِ هُمَا تَقْرَؤُونَهُمَا فِي الرَّكْعَتَيْنِ قَبْلَالْفَجْرِ قُلْ يَا أَيُّهَا الْكَافِرُونَ وَقُلْ هُوَ اللهُ أَحَدٌ