Natyashastra
पद्मकोशस्य हस्तस्य ह्यङ्गुल्यः कुञ्चिता यदा । ऊर्णनाभः स विज्ञेयः केशचौर्यग्रहादिषु ॥ १२०॥
When the fingers of the Padmakośa hand are bent, it is known as Ūrṇanābha. It is used for representing holding one by the hair, receiving stolen goods, and seizing objects.
english translation
padmakozasya hastasya hyaGgulyaH kuJcitA yadA । UrNanAbhaH sa vijJeyaH kezacauryagrahAdiSu ॥ 120॥
hk transliteration by Sanscript