عَنْ أَنَسِ بْنِ مَالِكٍ رضي الله عنه قَالَ: قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ:
«سَوُّوا صُفُوفَكُمْ، فَإِنَّ تَسْوِيَةَ الصَّفِّ مِنْ تَمَامِ الصَّلَاةِ».
[صحيح] - [متفق عليه] - [صحيح مسلم: 433]
المزيــد ...
Anas ibn Mālik (may Allah be pleased with him) reported: The Messenger of Allah (may Allah's peace and blessings be upon him) said:
"Straighten your rows, for indeed, straightening the row is from the perfection of the prayer."
[Authentic hadith] - [Narrated by Bukhari & Muslim] - [Sahih Muslim - 433]
The Prophet (may Allah's peace and blessings be upon him) commands those who perform the prayer to straighten their rows, not being forward or backward from the row, and that straightening the rows is part of the completion and perfection of the prayer, whereas the crookedness of the row is a flaw and deficiency in the prayer.