Shiva Purana
स पश्चादागतस्तत्र ब्रह्मचारी गुरुस्थलात् ॥ नभगोऽधीत्य सर्वाश्च सांगोपांगाः श्रुतीः क्रमात् ॥ ८ ॥
After learning the Vedas with their sections and sub-sections, in due course, the Brahmacārin Nabhga (Nabhaga?) returned.
english translation
sa pazcAdAgatastatra brahmacArI gurusthalAt ॥ nabhago'dhItya sarvAzca sAMgopAMgAH zrutIH kramAt ॥ 8 ॥
hk transliteration by Sanscript