Natyashastra
ध्वजभूताः प्रयोक्तव्याः पिण्डीबन्धाः सुचिह्निताः । रेचका अङ्गहाराश्च पिण्डीबन्धातस्थैव च ॥ २५९॥
The Piṇḍībandhas, marked with auspicious signs, should be employed in the form of flags. Recakas, Aṅgahāras, and Piṇḍībandhas should be performed as prescribed.
english translation
dhvajabhUtAH prayoktavyAH piNDIbandhAH sucihnitAH । recakA aGgahArAzca piNDIbandhAtasthaiva ca ॥ 259॥
hk transliteration by Sanscript