Meluruskan dan merapatkan barisan dalam shalat karena sesungguhnya lurusnya barisan termasuk kesempurnaan shalat
Imam Ahmad : 13279حَدَّثَنَا مُعَاوِيَةُ حَدَّثَنَا زَائِدَةُ حَدَّثَنَا حُمَيْدٌ الطَّوِيلُ حَدَّثَنَا أَنَسُ بْنُ مَالِكٍ قَالَ أُقِيمَتْ الصَّلَاةُ فَأَقْبَلَ عَلَيْنَا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِوَجْهِهِ فَقَالَ أَقِيمُوا صُفُوفَكُمْ وَتَرَاصُّوا فَإِنِّي أَرَاكُمْ مِنْ وَرَاءِ ظَهْرِي
Narrated to us [Mu'awiyah] Narrated to us [Za'idah] Narrated to us [Humaid At Thowil] Narrated to us [Anas bin Malik] said: Iqamah has been declared for prayer. The Messenger of Allah peace and blessings be upon him turned his face towards us and said: "Straighten your rows and level them! I see you from behind my back.