[Machine] Indeed, Allah has enjoined the prayer upon the tongue of your Prophet ﷺ four units in a state of residence and during travel two units, and in a state of fear one unit. And Abu Abdullah al-Hafiz narrated to us, Abu Bakr ibn Abdullah narrated to us, Hasan ibn Sufyan narrated to us, Uthman and Abu Bakr, the sons of Abu Shaybah, said, Al-Qasim ibn Malik al-Muzani narrated to us, Ayoub ibn A'idh al-Tayi mentioned him in a similar manner.  

إِنَّ اللهَ فَرَضَ الصَّلَاةَ عَلَى لِسَانِ نَبِيِّكُمْ ﷺ أَرْبَعًا فِي الْحَضَرِ وَفِي السَّفَرِ رَكْعَتَيْنِ وَفِي الْخَوْفِ رَكْعَةً 6055 وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أنبأ أَبُو بَكْرِ بْنُ عَبْدِ اللهِ أنبأ الْحَسَنُ بْنُ سُفْيَانَ ثنا عُثْمَانُ وَأَبُو بَكْرٍ ابْنَا أَبِي شَيْبَةَ قَالَا ثنا الْقَاسِمُ بْنُ مَالِكٍ الْمُزَنِيُّ ثنا أَيُّوبُ بْنُ عَائِذٍ الطَّائِيُّ فَذَكَرَهُ بِنَحْوِهِ