1 verse has
صَفًّۭا
in Edition Uthmani / As-Saaffaat (Those drawn up in Ranks)

1:37بِسْمِ ٱللَّهِ ٱلرَّحْمَٰنِ ٱلرَّحِيمِ وَٱلصَّٰٓفَّٰتِ صَفًّۭا