حَدَّثَنِي مُحَمَّدُ بْنُ إِسْمَاعِيلَ بْنِ سَالِمٍ، قَالَ: ثَنَا رَوْحُ بْنُ عُبَادَةَ، قَالَ: ثَنَا شُعْبَةُ، وَمَالِكُ بْنُ أَنَسَ، عَنْ يَحْيَى بْنِ سَعِيدٍ، عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ، عَنْ صَالِحِ بْنِ خَوَّاتٍ، عَنْ سَهْلِ بْنِ أَبِي حَثْمَةَ، رَضِيَ اللَّهُ عَنْهُ أَنَّهُ قَالَ فِي صَلَاةِ الْخَوْفِ: تَقُومُ طَائِفَةٌ بَيْنَ يَدَيِ الْإِمَامِ وَطَائِفَةٌ خَلْفَهُ فَيُصَلِّي بِالَّذِينَ خَلْفَهُ رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ يَقْعُدُ مَكَانَهُ حَتَّى يَقْضُوا رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ يَتَحَوَّلُونَ إِلَى مَقَامِ أَصْحَابِهِمْ ثُمَّ يَتَحَوَّلُ أَصْحَابِهِمْ إِلَى مَكَانِ هَؤُلَاءِ فَيُصَلِّي بِهِمْ رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ يَقْعُدُ مَكَانَهُ حَتَّى يُصَلُّوا رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ يُسَلِّمُ
Sayyiduna Sahl bin Huthmah (may Allah be pleased with him) narrates regarding the prayer of fear (Salat al-Khawf) that one group will stand in front of the Imam and one group will stand behind the Imam. Then the Imam will lead those behind him in one bowing (ruku) and two prostrations (sujood) (i.e., one rak’ah), and he will remain seated in his place until they complete another bowing and two prostrations (i.e., perform the second rak’ah). Then these will go to the place of their companions and those will come to their place. The Imam will lead them in one bowing and two prostrations, and he will remain seated in his place until they complete another bowing and two prostrations. Then he will say the salam (to end the prayer).