Qur'an 61:4 · As-Saff

إِنَّ ٱللَّهَ يُحِبُّ ٱلَّذِينَ يُقَٰتِلُونَ فِى سَبِيلِهِۦ صَفًّۭا كَأَنَّهُم بُنْيَٰنٌۭ مَّرْصُوصٌۭ

(4) Indeed, Allāh loves those who fight in His cause in a row as though they are a [single] structure joined firmly.