यज्ञप्रवर्तनम् (Yajña-pravartana) — The Institution/Commencement of Sacrifice in Dvāpara
तथैव संध्या पादेन ह्यङ्गः संध्या इतीष्यते / द्वापरस्यावशेषेण तिष्यस्य तु निबोधत
tathaiva saṃdhyā pādena hyaṅgaḥ saṃdhyā itīṣyate / dvāparasyāvaśeṣeṇa tiṣyasya tu nibodhata
Likewise, a quarter portion of the twilight is called the ‘aṅga-sandhyā’. From what remains of Dvāpara, understand the nature of Tiṣya (Kali).