﴿ إِنَّ ٱللَّهَ يُحِبُّ ٱلَّذِينَ يُقَٰتِلُونَ فِى سَبِيلِهِۦ صَفًّۭا كَأَنَّهُم بُنْيَٰنٌۭ مَّرْصُوصٌۭ ﴾

“Verily, God loves [only] those who fight in His cause in [solid] ranks, as though they were a building firm and compact.”

Indeed God loves He assists and honours those who fight for His cause in ranks saffan is a circumstantial qualifier in other words understand it as sāffīna as if they were a solid structure with all of its parts compacted together firm.