Once the Prophet ﷺ led the fear prayer and the people stood behind him. He said Takbir (Allahu-Akbar) and the people said the same. He bowed and some of them bowed. Then he prostrated and they also prostrated. Then he stood for the second rakʿa and those who had prayed the first rakʿa left and guarded their brothers. The second party joined him and performed bowing and prostration with him. All the people were in prayer but they were guarding one another during the prayer.  

قَامَ النَّبِيُّ ﷺ وَقَامَ النَّاسُ مَعَهُ فَكَبَّرَ وَكَبَّرُوا مَعَهُ وَرَكَعَ وَرَكَعَ نَاسٌ مِنْهُمْ ثُمَّ سَجَدَ وَسَجَدُوا مَعَهُ ثُمَّ قَامَ لِلثَّانِيَةِ فَقَامَ الَّذِينَ سَجَدُوا وَحَرَسُوا إِخْوَانَهُمْ وَأَتَتِ الطَّائِفَةُ الأُخْرَى فَرَكَعُوا وَسَجَدُوا مَعَهُ وَالنَّاسُ كُلُّهُمْ فِي صَلاَةٍ وَلَكِنْ يَحْرُسُ بَعْضُهُمْ بَعْضًا  

'Abdullah bin 'Abbas said: "The Messenger of Allah ﷺ stood and the people stood with him, and he said the takbir and they said the takbir. Then he bowed, and some of them bowed, then he prostrated and they prostrated, then he stood for the second rak'ah and those who had prostrated with him moved back and guarded their brothers, and the other group came and bowed and prostrated with the Prophet ﷺ. All the people were praying and saying the takbir, but they were guarding one another." (Using translation from Nasāʾī 1534)  

«قَامَ رَسُولُ اللَّهِ ﷺ وَقَامَ النَّاسُ مَعَهُ فَكَبَّرَ وَكَبَّرُوا مَعَهُ ثُمَّ رَكَعَ وَرَكَعَ مَعَهُ نَاسٌ مِنْهُمْ ثُمَّ سَجَدَ وَسَجَدُوا ثُمَّ قَامَ إِلَى الرَّكْعَةِ الثَّانِيَةِ فَتَأَخَّرَ الَّذِينَ سَجَدُوا مَعَهُ يَحْرُسُونَ إِخْوَانَهُمْ وَأَتَتِ الطَّائِفَةُ الْأُخْرَى فَرَكَعُوا مَعَ نَبِيِّ اللَّهِ ﷺ وَسَجَدُوا وَالنَّاسُ كُلُّهُمْ فِي صَلَاةٍ يُكَبِّرُونَ وَلَكِنْ يَحْرُسُ بَعْضُهُمْ بَعْضًا»  

'Abdullah bin 'Abbas said: "The Messenger of Allah ﷺ stood and the people stood with him, and he said the takbir and they said the takbir. Then he bowed, and some of them bowed, then he prostrated and they prostrated, then he stood for the second rak'ah and those who had prostrated with him moved back and guarded their brothers, and the other group came and bowed and prostrated with the Prophet ﷺ. All the people were praying and saying the takbir, but they were guarding one another." (Using translation from Nasāʾī 1534)  

«قَامَ نَبِيُّ اللهِ ﷺ وَقَامَ النَّاسُ مَعَهُ فَكَبَّرَ وَكَبَّرُوا ثُمَّ رَكَعَ وَرَكَعَ أُنَاسٌ مِنْهُمْ ثُمَّ سَجَدَ وَسَجَدُوا ثُمَّ قَامَ إِلَى الرَّكْعَةِ الثَّانِيَةِ فَتَأَخَّرَ الَّذِينَ سَجَدُوا مَعَهُ وَحَرَسُوا إِخْوَانَهُمْ وَأَتَتِ الطَّائِفَةُ الْأُخْرَى فَرَكَعُوا مَعَ النَّبِيِّ ﷺ وَسَجَدُوا وَالنَّاسُ كُلُّهُمْ فِي صَلَاةٍ يُكَبِّرُونَ وَلَكِنْ يَحْرُسُ بَعْضُهُمْ بَعْضًا»