Final answer:
The statement is true; the Yoga Sutras by Patanjali do not describe specific asanas or poses but include asana as a stable position for meditation.
Step-by-step explanation:
This statement is considered to be true. The Yoga Sutras, a classical text on yoga philosophy written by the sage Patanjali circa 400 BCE, focuses on the philosophy and practice of yoga with an emphasis on the mind and the path to enlightenment. While it outlines an eight-limbed path that includes asana (posture), the sutras do not detail physical poses but rather designate asana as a stable and comfortable position which facilitates meditation. The emphasis on asanas as physical exercises is a more modern interpretation and extension of the yoga tradition.