Reference: Fataawa Islaamiyyah – Volume 1, Page 358
Question: From where should the row begin in prayer, does it begin from behind the imaam, or from the far right?
Response: The first row in prayer begins from behind the imaam and then fills up to the right and left, not from the far right – as the questioner said, and likewise the second row and those after it.
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet Muhammad ﷺ and his family and his companions.