From Devadatta came a son known as Agniveśya, who was the fire-god Agni himself. This son, who was a celebrated saint, was well known as Kānīna and Jātūkarṇya.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
ततोऽग्निवेश्यो भगवानग्निः स्वयमभूत्सुतः । कानीन इति विख्यातो जातूकर्ण्यो महान् ऋषिः
tato'gniveśyo bhagavānagniḥ svayamabhūtsutaḥ | kānīna iti vikhyāto jātūkarṇyo mahān ṛṣiḥ
SB 9.2.21