Canto 1 - Boyhood
Bāla-kāṇḍa
Chapter 40: Lord Kapila Punishes Sagara’s Sons
Text 1.40.12

पितुर्वचनमासाद्य सगरस्य महात्मनः।
षष्टिः पुत्रसहस्राणि रसातलमभिद्रवन्॥

pitur vacanam āsādya sagarasya mahātmanaḥ
ṣaṣṭiḥ
putra-sahasrāṇi rasātalam abhidravan

pituḥ = of their father; vacanam = the instruction; āsādya = accepting; sagarasya = Sagara; mahā-ātmanaḥ = the great soul; ṣaṣṭiḥ putra-sahasrāṇi = his sixty thousand sons; rasātalam = Rasātala; abhidravan = rushed towards.

Accepting the instructions of their father, the great soul Sagara, his 60,000 sons rushed towards Rasātala.