Natyashastra
वागङ्गमुखरागेण सत्त्वेनाभिनयेन च । कवेरन्तर्गतं भावं भावयन्भाव उच्यते ॥ २॥
As in these, the inner idea of the playwright is made to pervade [the mind of the spectators] by means of Words, Gestures, colour of the face and Representation of the Sattva, they are called bhāvas.
english translation
vAgaGgamukharAgeNa sattvenAbhinayena ca । kaverantargataM bhAvaM bhAvayanbhAva ucyate ॥ 2॥
hk transliteration by Sanscript