It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Verily, Allah Almighty and His angels send mercy upon those in the first row. The companions said: O Messenger of Allah! And those in the second row? He (peace and blessings be upon him) said: Verily, Allah Almighty and His angels send mercy upon those in the first row. The companions again said: O Messenger of Allah! And those in the second row? He (peace and blessings be upon him) said: And upon those in the second row as well. Then the Messenger of Allah (peace and blessings be upon him) said: Straighten your rows, align your shoulders, be gentle in the hands of your brothers, and fill the gaps in the rows, for indeed Satan slips in among you like small lambs.