'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 (ﷺ). 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 (ﷺ)stood beside him andwhen he finished he said: 'Repeat your prayer;there is no prayer forthe one who is behind the row.'"
English reference: Vol. 1, Book 5, Hadith 1003
Arabic reference: Book 5, Hadith 1056