चतुर्युगाख्यान (Caturyuga-Ākhyāna) — Yuga-wise Origins and Measurements of Beings
एते मन्त्रकृतः सर्वे काश्यपांस्तु निबोधत / काश्यपश्चैव वत्सारो नैध्रुवो रैभ्य एव च
ete mantrakṛtaḥ sarve kāśyapāṃstu nibodhata / kāśyapaścaiva vatsāro naidhruvo raibhya eva ca
All these are composers of sacred mantras from the Kāśyapa lineage; know them as Kāśyapa, Vatsāra, Naidhruva, and Raibhya.