व्यासशिष्योत्पत्तिवर्णन (Origins/Enumeration of Vyāsa’s Disciplic Succession) — Chapter on Vedic Transmission Lineages
तथा मन्वन्तरान्तेषु आदिर्मन्वन्तरस्य च / क्षीणे मन्वन्तरे पूर्वे प्रवृत्ते चापरे पुनः
tathā manvantarānteṣu ādirmanvantarasya ca / kṣīṇe manvantare pūrve pravṛtte cāpare punaḥ
So too, at the ends of the Manvantaras and at the very beginning of a Manvantara: when the former Manvantara is spent and the next again comes into course.