ŚāṅkhGS, 2, 2, 1.0 iyaṃ duruktāt paribādhamānā varṇaṃ pavitraṃ punatī na āgāt prāṇāpānābhyāṃ balam āviśantī sakhā devī subhagā mekhaleyam iti trir mekhalāṃ pradakṣiṇaṃ triḥ pariveṣṭya //