Prajāpati-vaṃśānukīrtana — Genealogical Enumeration of Progenitors
Dharma’s Line and the Sādhyas
कद्रूर्माता च नागानां प्रजास्तासां निबोधत / स्वायंभुवे ऽन्तरे तात ये द्वादश सुरोत्तमाः
kadrūrmātā ca nāgānāṃ prajāstāsāṃ nibodhata / svāyaṃbhuve 'ntare tāta ye dvādaśa surottamāḥ
Kadru was the mother of the Nagas; know well their progeny. O dear one, in the Svayambhuva Manvantara there were twelve most excellent gods.