And the clarification is that his prayer behind the row alone is not permissible; he must repeat it, and that his saying: "He has no prayer" is of the kind where the Arabs negate the name of a thing due to its deficiency from perfection.

Sayyiduna Ali bin Shiban رضي الله عنه, who was a member of the delegation, narrates: We offered prayer behind the Prophet صلى الله عليه وسلم. When the Prophet صلى الله عليه وسلم completed the prayer, he saw a man who was praying alone behind the row. The Prophet صلى الله عليه وسلم stood by that man until he completed his prayer. Then the Prophet صلى الله عليه وسلم said to him: "Repeat your prayer, for there is no prayer for a man who prays alone behind the row."