What is the ruling on a person praying alone behind the rows in the congregation?

The questioner : Yes, regarding the third question. This is about a person praying alone behind the rows in the congregation.

The Shaykh : Are you hearing me now, or not? Yes, are you hearing me?

The questioner : Yes, I am hearing, I am hearing. It is a bit weak, but I am hearing. Does he repeat his prayer, or is his prayer valid?

The Shaykh : If the row in front of him is complete, he does not repeat the prayer; his prayer is valid.

The questioner : Okay, regarding...

The Shaykh : No, and if the row is not complete, he repeats the prayer.

The questioner : O, repeat the prayer.

The Shaykh : If the row is not complete.

The questioner : He repeats the prayer and does not pull anyone from the row of the worshippers.

The Shaykh : He does not pull anyone from the row. Do you understand what I am saying now, or not?

The questioner : Yes, the meaning is clear. If the row is complete, he does not repeat the prayer. If the row is incomplete, he repeats the prayer.

The Shaykh : All right.