Paschimottanasana (Back Stretching Pose)
Prasarya padau bhuvi dandarupau Dorbhyam padaghradvitayam ghrhitva/ Januparinyastalalatadeso Vasedidam paschimatanamahuh.// (Chapter -1, Verse 28).
Stretching the legs in front on the ground, like a stick; bending forward, holding the toes with both hands and placing the forehead on the knees, is known as Paschimottanasana. (Chapter -1, Verse 28).
Paschimottanasana
Iti paschimatanamasanaghryam Pavanam paschimavahinam karoti/ Udayam jatharanalasya kuryad Udare karsyamaroghatam cha pumsam//(Chapter -1, Verse 29).
Paschimottanasana is the best among asanas. By this asana the pranic currents rise through sushumna, the digestive fire stimulates, the abdomen becomes flat, and the practitioner becomes free from all kind of diseases. (Chapter -1, Verse 29).