825An NasaiSahih (Darussalam)أَخْبَرَنَا إِسْمَاعِيلُ بْنُ مَسْعُودٍ، عَنْ خَالِدٍ، قَالَ حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ أَتِمُّوا الصَّفَّ الأَوَّلَ ثُمَّ الَّذِي يَلِيهِ وَإِنْ كَانَ نَقْصٌ فَلْيَكُنْ فِي الصَّفِّ الْمُؤَخَّرِ " It was narrated from Anas that the Messenger of Allah (ﷺ) said:"Complete the first row, then the one behind it, and if any row is to be left incomplete let it be the last row."Reference: Sunan an-Nasa'i 818 In-book : Book 10, Hadith 42 English translation : Vol. 1, Book 10, Hadith 819