Sayyiduna Anas (may Allah be pleased with him) narrated that the Prophet (peace and blessings of Allah be upon him) said: "Straighten your rows, for straightening the rows is part of establishing the prayer."

Sayyiduna Anas (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: "Straighten your rows, for I can see you from behind my back."

Sayyiduna Nu'man bin Bashir رضي الله عنه narrates that the Noble Prophet صلى الله عليه وسلم said: "Straighten your rows in prayer, otherwise Allah, the Exalted, will turn your faces."

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated that the Prophet Muhammad (peace and blessings be upon him) said: If people knew how much reward there is in calling the Adhan and in praying in the first row, and they had no other way except to draw lots for it, then they would certainly draw lots for it. And if people knew how much reward there is in coming early for the prayer, they would surely compete with one another to get ahead. And if people knew how much reward there is in the ‘Isha and Fajr prayers, they would certainly come to them even if they had to crawl.