فِي كُلِّ رَكْعَةٍ رُكُوعٌ وَاحِدٌ، وَيُطَوِّلُ الْقِرَاءَةَ فِيهِمَا،
Translation: Each rak‘ah contains one bowing, and recitation is prolonged in both units.
In two rak‘ahs there are two bowings in total. The general rak‘ah structure remains that of voluntary prayer, with unusually long recitation singled out as the preferred manner.