The ruling on the prayer of a single person behind the rows

Question:
This questioner says: In our neighborhood and in my residence, I am slightly late for the Zuhr prayer, so the row is complete and I do not find a space to enter the first row, so I pray alone behind the row by myself. This has happened to me more than once.

Answer:
First, you erred in being late to attend. It is obligatory for you to hasten to the prayer when you hear the call, so hasten to the prayer. Take your place in the row; the closer you are to the imam, the better. Do not deprive yourself of this virtue. If you come late, you must enter the row or have someone come to pray with you. Do not pray alone behind the row. The prayer of a single person behind the row is not valid. The Prophet (peace and blessings be upon him) saw a man praying alone behind the row, so he ordered him to repeat the prayer, and he said (peace and blessings be upon him) Yes.

The presenter:
May Allah reward you,