IMPORTANCE OF KEEPING PRAYER ROWS STRAIGHT H 161 "Keep your rows straight during prayers, if you do not Allah will create dissension among you. The Prophet, praise and peace be upon him, insisted that we keep our rows straight to the extent that they were as straight as arrows. He continued to emphasize this till he felt sure we had realized its importance. One day he came into the mosque to lead the prayer and he was about to pronounce the opening takbir (Allahu Akbar) when he noticed the chest of one of THE worshipers protruding out of the line, he said: Worshipers of Allah, keep your rows straight or else Allah will create dissension among you.'" R 161 Bukhari and Muslim with a chain up to Nu'man son of Bashir who related that he heard the Prophet, praise and peace be upon him, say this.
160- الخامس : عن أَبي عبدِ الله النعمان بن بشير رَضيَ الله عنهما ، قَالَ : سمعت رَسُول الله صلى الله عليه وآله وسلم ، يقول : "لَتُسَوُّنَّ صُفُوفَكُمْ ، أَوْ لَيُخَالِفَنَّ اللهُ بَيْنَ وُجُوهِكُمْ" مُتَّفَقٌ عَلَيهِ . وفي رواية لمسلم : كَانَ رَسُول الله صلى الله عليه وآله وسلم يُسَوِّي صُفُوفَنَا حتى كأنَّما يُسَوِّي بِهَا القِدَاحَ حَتَّى إِذَا رَأَى أَنَّا قَدْ عَقَلْنَا عَنْهُ . ثُمَّ خَرَجَ يَوماً فقامَ حَتَّى كَادَ أنْ يُكَبِّرَ فرأَى رَجلاً بَادياً صَدْرُهُ ، فَقَالَ : "عِبَادَ الله ، لَتُسَوُّنَّ صُفُوفَكُمْ أَوْ لَيُخَالِفَنَّ اللهُ بَيْنَ وُجُوهِكُمْ" .