Mahabharata 12.49.27

वासुदेव उवाच · vāsudeva uvāca

ततः सत्यवती पुत्रं जनयामास भार्गवम्तपस्यभिरतं शान्तं जमदग्निं शमात्मकम्

tataḥ satyavatī putraṃ janayāmāsa bhārgavamtapasyabhirataṃ śāntaṃ jamadagniṃ śamātmakam

Our plain-language meaning of this verse is waiting for scholar review.