Natyashastra
समुन्नतमुरश्चैव सौष्ठवं नाम तद्भवेत् । वामे पुष्पपुटः पार्श्वे पादोऽग्रतलसञ्चरः ॥ ६१॥
With the chest raised high, it is known as Saushtava (graceful posture). On the left side is the Puṣpapuṭa hand gesture, and the foot moves with the Agratalasañcara ( moving on the tip of the toe) movement.
english translation
samunnatamurazcaiva sauSThavaM nAma tadbhavet । vAme puSpapuTaH pArzve pAdo'gratalasaJcaraH ॥ 61॥
hk transliteration by Sanscript