Sahl b. Abu Hathma reported that the Messenger of Allah ﷺ led his Companions in prayer in danger. He made them stand in two rows behind him. He led them who were close to him in one rak'ah. He then stood up and kept standing till those who were behind them observed one rak'ah. Then they (those standing in the second row) came in front and those who were in front went into the rear. He then led them In one rak'ah. He then sat down, till those who were behind him observed one rak'ah and then pronounced salutation.  

أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى بِأَصْحَابِهِ فِي الْخَوْفِ فَصَفَّهُمْ خَلْفَهُ صَفَّيْنِ فَصَلَّى بِالَّذِينَ يَلُونَهُ رَكْعَةً ثُمَّ قَامَ فَلَمْ يَزَلْ قَائِمًا حَتَّى صَلَّى الَّذِينَ خَلْفَهُمْ رَكْعَةً ثُمَّ تَقَدَّمُوا وَتَأَخَّرَ الَّذِينَ كَانُوا قُدَّامَهُمْ فَصَلَّى بِهِمْ رَكْعَةً ثُمَّ قَعَدَ حَتَّى صَلَّى الَّذِينَ تَخَلَّفُوا رَكْعَةً ثُمَّ سَلَّمَ  

The Messenger of Allah ﷺ led them in offering the fear prayer. One row stood in front of him and another row stood behind him. He led those who were behind in prayer, bowing once and prostrating twice, then they moved forward until they took the place of their companions, and the others came and took their place, and the Messenger of Allah ﷺ led them in prayer, bowing once and prostrating twice, then he said the taslim, so the Prophet ﷺ had prayed two rak'ahs and they had prayed one.  

أَنَّ رَسُولَ اللَّهِ ﷺ صَلَّى بِهِمْ صَلاَةَ الْخَوْفِ فَقَامَ صَفٌّ بَيْنَ يَدَيْهِ وَصَفٌّ خَلْفَهُ صَلَّى بِالَّذِينَ خَلْفَهُ رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ تَقَدَّمَ هَؤُلاَءِ حَتَّى قَامُوا فِي مَقَامِ أَصْحَابِهِمْ وَجَاءَ أُولَئِكَ فَقَامُوا مَقَامَ هَؤُلاَءِ وَصَلَّى بِهِمْ رَسُولُ اللَّهِ ﷺ رَكْعَةً وَسَجْدَتَيْنِ ثُمَّ سَلَّمَ فَكَانَتْ لِلنَّبِيِّ ﷺ رَكْعَتَانِ وَلَهُمْ رَكْعَةٌ  

The Prophet ﷺ prayed in time of danger and divided them (the people) behind him in two rows. He then led those who were near him in one rak'ah. Then he stood and remained standing till those who were in second row offered one rak'ah. Thereafter they came forward and those who were in front of them (in the first row) stepped backward. The Prophet ﷺ led them in one rak'ah of prayer. He sat down till those who were in the second row completed on rak'ah. He then uttered the salutation.  

أَنَّ النَّبِيَّ ﷺ صَلَّى بِأَصْحَابِهِ فِي خَوْفٍ فَجَعَلَهُمْ خَلْفَهُ صَفَّيْنِ فَصَلَّى بِالَّذِينَ يَلُونَهُ رَكْعَةً ثُمَّ قَامَ فَلَمْ يَزَلْ قَائِمًا حَتَّى صَلَّى الَّذِينَ خَلْفَهُمْ رَكْعَةً ثُمَّ تَقَدَّمُوا وَتَأَخَّرَ الَّذِينَ كَانُوا قُدَّامَهُمْ فَصَلَّى بِهِمُ النَّبِيُّ ﷺ رَكْعَةً ثُمَّ قَعَدَ حَتَّى صَلَّى الَّذِينَ تَخَلَّفُوا رَكْعَةً ثُمَّ سَلَّمَ  

The Messenger of Allah ﷺ led us in prayer in the time of danger. They (the people) stood in two rows. One row was behind the Messenger of Allah ﷺ and the other faced the enemy. The Messenger of Allah ﷺ led them in one rak'ah,and then the other section came and took their place; they went and faced the enemy. The Prophet ﷺ led them in one rak'ah and uttered the salutation. They stood up and prayed the second rak'ah by themselves and uttered the salutation and went away; they took the place of the other section facing the enemy. They came back and took their place. They prayed one rak'ah by themselves and then uttered the salutation.  

صَلَّى بِنَا رَسُولُ اللَّهِ ﷺ صَلاَةَ الْخَوْفِ فَقَامُوا صَفَّيْنِ صَفٌّ خَلْفَ رَسُولِ اللَّهِ ﷺ وَصَفٌّ مُسْتَقْبِلَ الْعَدُوِّ فَصَلَّى بِهِمْ رَسُولُ اللَّهِ ﷺ رَكْعَةً ثُمَّ جَاءَ الآخَرُونَ فَقَامُوا مَقَامَهُمْ وَاسْتَقْبَلَ هَؤُلاَءِ الْعَدُوَّ فَصَلَّى بِهِمُ النَّبِيُّ ﷺ رَكْعَةً ثُمَّ سَلَّمَ فَقَامَ هَؤُلاَءِ فَصَلَّوْا لأَنْفُسِهِمْ رَكْعَةً ثُمَّ سَلَّمُوا ثُمَّ ذَهَبُوا فَقَامُوا مَقَامَ أُولَئِكَ مُسْتَقْبِلِي الْعَدُوِّ وَرَجَعَ أُولَئِكَ إِلَى مَقَامِهِمْ فَصَلَّوْا لأَنْفُسِهِمْ رَكْعَةً ثُمَّ سَلَّمُوا