अनुद्वेगकरं वाक्यं सत्यं प्रियहितं च यत् ।स्वाध्यायाभ्यसनं चैव वाङ्मयं तप उच्यते ॥
anudvegakaraṃ vākyaṃ satyaṃ priyahitaṃ ca yat |svādhyāyābhyasanaṃ caiva vāṅmayaṃ tapa ucyate ||
Speech that does not upset others, that is true, pleasant and helpful, together with the regular practice of studying scripture: this is called austerity of speech.