Before revision: Yoga Sutras of Patanjali Pranayama is the fourth "limb" of the eight limbs of Ashtanga Yoga mentioned in verse 2.29 in the Yoga Sutras of Patanjali.
After revision: Yoga Sutras of Patanjali Pranayama is the fourth "limb" of the eight limbs of Ashtanga Yoga mentioned of, as verse 2.29 in the Yoga Sutras of Patanjali.