Natyashastra
स्थानेन समपादेन तथा चूर्णपदैरपि । व्योम्नश्चावतरेद्यस्तु तस्यैतां कारयेत् गतिम् ॥ ९४॥
From the Samapāda stance and with short steps, one descending from the sky should perform this kind of gait.
english translation
sthAnena samapAdena tathA cUrNapadairapi । vyomnazcAvataredyastu tasyaitAM kArayet gatim ॥ 94॥
hk transliteration by Sanscript