avadhyah -- not to be killed; ayam -- he; mama -- by Me; api -- indeed; eshah -- this; vairocani-sutah -- son of Vairocani (Bali); asurah -- demon; prahradaya -- to Prahlada; varah -- the benediction; dattah -- given; na vadhyah -- not to be killed; me -- by Me; tava -- your; anvayah -- descendants.

I will not kill this demonic son of Vairocani, for I gave Prahlada Maharaja the benediction that I would not kill any of his descendants.