Natyashastra
विदूषकस्यापि गतिर्हास्यत्रयसमन्विता । अङ्गवाक्यकृतं हास्यं हास्यं नेपथ्यजं स्मृतम् ॥ १३८॥
The gait of the Jester should involve the three types of laughter. Laughter arising from limbs, from speech, and from costume and make-up is to be remembered as the three sources of Comic Sentiment.
english translation
vidUSakasyApi gatirhAsyatrayasamanvitA । aGgavAkyakRtaM hAsyaM hAsyaM nepathyajaM smRtam ॥ 138॥
hk transliteration by Sanscript