O great hero, my dear son Parasurama, you have unnecessarily killed the king, who is supposed to be the embodiment of all the demigods. Thus you have committed a sin

Expressions researched:
"O great hero, my dear son Paraśurāma, you have unnecessarily killed the king, who is supposed to be the embodiment of all the demigods. Thus you have committed a sin"

Srimad-Bhagavatam

SB Canto 9

O great hero, my dear son Paraśurāma, you have unnecessarily killed the king, who is supposed to be the embodiment of all the demigods. Thus you have committed a sin.

SB 9.15.38, Translation

O great hero, my dear son Paraśurāma, you have unnecessarily killed the king, who is supposed to be the embodiment of all the demigods. Thus you have committed a sin.