Manava Dharmashastra 3.88

Manvarthamuktāvalī 3.88

indriyāṇāṃ viṣayeṣvapaharaṇaśīleṣu vartamānānāṃ kṣayitvādiviṣayadoṣajñānansaṃgrame yatnaṃ kuryātsārathiriva rathaniyuktānāmaśvānām|