حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُلاَزِمُ بْنُ عَمْرٍو، عَنْ عَبْدِ اللَّهِ بْنِ بَدْرٍ، حَدَّثَنِي عَبْدُ الرَّحْمَنِ بْنُ عَلِيِّ بْنِ شَيْبَانَ، عَنْ أَبِيهِ، عَلِيِّ بْنِ شَيْبَانَ - وَكَانَ مِنَ الْوَفْدِ - قَالَ خَرَجْنَا حَتَّى قَدِمْنَا عَلَى النَّبِيِّ ـ صلى الله عليه وسلم ـ فَبَايَعْنَاهُ وَصَلَّيْنَا خَلْفَهُ ثُمَّ صَلَّيْنَا وَرَاءَهُ صَلاَةً أُخْرَى فَقَضَى الصَّلاَةَ فَرَأَى رَجُلاً فَرْدًا يُصَلِّي خَلْفَ الصَّفِّ ‏.‏ قَالَ فَوَقَفَ عَلَيْهِ نَبِيُّ اللَّهِ ـ صلى الله عليه وسلم ـ حِينَ انْصَرَفَ قَالَ ‏"‏ اسْتَقْبِلْ صَلاَتَكَ لاَ صَلاَةَ لِلَّذِي خَلْفَ الصَّفِّ ‏"‏ ‏.‏

‘Abdur-Rahman bin ‘Ali bin Shaiban narrated that his father, ‘AlibinShaiban, who was part of the delegation, said: “We set outuntil wecame to the Prophet (PBUH). We gave him our oath ofallegiance andperformed prayer behind him. Then we offered anotherprayer behindhim. He finished the prayer and saw a man on his own,praying behindthe row.” He said: “The Prophet of Allah (PBUH)stood beside him andwhen he finished he said: ‘Repeat your prayer;there is no prayer forthe one who is behind the row.’” Translation Not Available

Book Ref: Sunan Ibn Majah Book 5 Hadith 1003
Web Ref:  Sunan Ibn Majah Vol 1 Book 5 Hadith 1003