paśor ivākaruṇaḥ svarga-kāmaḥ

yah-he who; nah-our; agra-jasya-of the elder brother; atma-vidah-who was fully self-realized; dvi-jateh-a qualified brahmana; guroh-your spiritual master; apapasya-free from all sinful activities; ca-also; diksitasya-appointed as the initiator of your yajna; visrabhya-trustfully; khadgena-by your sword; siramsi-the heads; avrscat-cut off; pasoh-of an animal; iva-like; akarunah-merciless; svarga-kamah-desiring the heavenly planets.