Straightening The Rows; The Virtue Of The Front Row And Then The Next; Competing With One Another For The Front Row; The People Of Virtue Should Take Precedence And Be Closest To The Imam Sahih Muslim 432 a

Arabic hadith text
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، وَأَبُو مُعَاوِيَةَ وَوَكِيعٌ عَنِ الأَعْمَشِ، عَنْ عُمَارَةَ بْنِ عُمَيْرٍ التَّيْمِيِّ، عَنْ أَبِي مَعْمَرٍ، عَنْ أَبِي مَسْعُودٍ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَمْسَحُ مَنَاكِبَنَا فِي الصَّلاَةِ وَيَقُولُ ‏"‏اسْتَوُوا وَلاَ تَخْتَلِفُوا فَتَخْتَلِفَ قُلُوبُكُمْ لِيَلِنِي مِنْكُمْ أُولُو الأَحْلاَمِ وَالنُّهَى ثُمَّ الَّذِينَ يَلُونَهُمْ ثُمَّ الَّذِينَ يَلُونَهُمْ ‏"‏ ‏.‏قَالَ أَبُو مَسْعُودٍ فَأَنْتُمُ الْيَوْمَ أَشَدُّ اخْتِلاَفًا ‏.‏
Translation
Abu Mas'ud reported

The Messenger of Allah (may peace he upon him) used to touch our shoulders in prayer and say: Keep straight, don't be irregular, for there would be dissension in your hearts. Let those of you who are sedate and prudent be near me, then those who are next to them, then those who are next to them. Abu Mas'ud said: Now-a-days there is much dissension amongst you.