O learned brāhmaṇas, the snake-bird Takṣaka, who had been sent by the angry son of a brāhmaṇa, was going toward the King to kill him when he saw Kaśyapa Muni on the path.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तक्षकः प्रहितो विप्राः क्रुद्धेन द्विजसूनुना । हन्तुकामो नृपं गच्छन् ददर्श पथि कश्यपम्
takṣakaḥ prahito viprāḥ kruddhena dvijasūnunā | hantukāmo nṛpaṃ gacchan dadarśa pathi kaśyapam
SB 12.6.11