On the saying of the Messenger (peace and blessings be upon him) [There is no prayer for one who prays alone behind the rows], does that mean the prayer is invalid?

Question:
Honorable Shaykh, may Allah grant you success, the questioner asks: In the saying of the Messenger (peace and blessings be upon him) , does that mean the prayer is invalid?

Answer:
Yes, the apparent meaning of the hadith is that there is no prayer for one who prays alone behind the rows. He saw a man praying alone behind the rows and ordered him to repeat it, and this is the position of the majority. Shaykh al-Islam chooses that if he does not find a place in the row and no one comes to stand in the row with him, he prays alone behind the rows, because standing in the row is obligatory and is dropped when there is inability, and this is an inability regarding this condition. However, the majority do not say that one does not pray behind the rows, due to the hadith: "There is no prayer for one who prays alone behind the rows." Yes.