Offering Salah in the last rows although there are incomplete rows

A: It is prescribed for the Ma’mums (persons being led by an Imam in Prayer) to tighten the rows and not to leave big spaces between them. However, if there is a big space between one row and the other; it will be permissible for a person to pass in front of such a row to fill in a free space in one of the incomplete rows. This is because the Sutrah (barrier placed in front of a person praying) of the Imam (the one who leads congregational Prayer) acts as a Sutrah for those offering Salah behind him. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.