It was narrated that Tha'labah bin Zahdam said:"We were with Sa'eed bin Al-'Asi in Tabaristan, and Hudhaifah bin Al-Yaman was with us. He said: 'Which of you offered the fear prayer with the Messenger of Allah (ﷺ)?' Hudhaifah said: 'I did.' So Hudhaifah stood and the people formed two rows behind him, one row behind him and one row facing the enemy. He led those who were behind him in praying one rak'ah, then they went and took the place of the others, and the others came and he led them in praying one rak'ah, and they did not make it up."
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا سُفْيَانُ، قَالَ حَدَّثَنِي أَشْعَثُ بْنُ سُلَيْمٍ، عَنِ الأَسْوَدِ بْنِ هِلاَلٍ، عَنْ ثَعْلَبَةَ بْنِ زَهْدَمٍ، قَالَ كُنَّا مَعَ سَعِيدِ بْنِ الْعَاصِي بِطَبَرِسْتَانَ فَقَالَ أَيُّكُمْ صَلَّى مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم صَلاَةَ الْخَوْفِ فَقَالَ حُذَيْفَةُ أَنَا . فَقَامَ حُذَيْفَةُ فَصَفَّ النَّاسُ خَلْفَهُ صَفَّيْنِ صَفًّا خَلْفَهُ وَصَفًّا مُوَازِيَ الْعَدُوِّ فَصَلَّى بِالَّذِي خَلْفَهُ رَكْعَةً ثُمَّ انْصَرَفَ هَؤُلاَءِ إِلَى مَكَانِ هَؤُلاَءِ وَجَاءَ أُولَئِكَ فَصَلَّى بِهِمْ رَكْعَةً وَلَمْ يَقْضُوا .
Nesai
The Book of the Fear Prayer • Hadith 1530