قَالَ: سَمِعْتُ النُّعْمَانَ بْنَ بَشِيرٍ، يَقُولُ: كَانَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ يُسَوِّي صُفُوفَنَا حَتَّى كَأَنَّمَا يُسَوِّي بِهَا الْقِدَاحَ حَتَّى رَأَى أَنَّا قَدْ عَقَلْنَا عَنْهُ، ثُمَّ خَرَجَ يَوْمًا فَقَامَ، حَتَّى كَادَ يُكَبِّرُ فَرَأَى رَجُلًا بَادِيًا صَدْرُهُ مِنَ الصَّفِّ، فَقَالَ: «عِبَادَ اللهِ لَتُسَوُّنَّ صُفُوفَكُمْ، أَوْ لَيُخَالِفَنَّ اللهُ بَيْنَ وُجُوهِكُمْ (مسلم:۹۷۹)
Translation
Abu Khaithama narrated from Simak bin Harb, he said: I heard Hazrat Nu'man bin Bashir (may Allah be pleased with them both), he used to say: The Messenger of Allah (PBUH) used to make our rows (so) straight and even, as if He was straightening arrows with them, until when He became certain that we had understood (this matter) well from Him, then after that one day He came out of His house and stood (at the place of leading the prayer) and He was about to say the Takbeer (and start the prayer when) He saw a man, whose chest was protruding slightly ahead of the row, He said: "O servants of Allah! You must definitely straighten your rows, otherwise Allah will turn your faces against each other."