Shiva Purana
पितामहोऽम्बरीषस्य नभगो यः प्रकीर्तितः ॥ तच्चरितं शृणु मुने यस्मै ज्ञानमदाच्छिवः ॥ ४॥
O sage, the grandfather of Ambarīṣa was Nabhaga to whom Śiva imparted perfect knowledge. Listen to his story.
english translation
pitAmaho'mbarISasya nabhago yaH prakIrtitaH ॥ taccaritaM zRNu mune yasmai jJAnamadAcchivaH ॥ 4॥
hk transliteration by Sanscript