svasur vadhÄn nivavá¹te
vasudevo 'pi taá¹ prÄ«taá¸¥
praÅasya prÄviÅad gá¹ham
ÅrÄ«-Åukaá¸¥ uvÄca - ÅrÄ« Åukadeva GosvÄmÄ« said; svasuá¸¥ - of his sister (DevakÄ«); vadhÄt - from the act of killing; nivavá¹te - stopped for the time being; kaá¹saá¸¥ - Kaá¹sa; tat-vÄkya - the words of Vasudeva; sÄra-vit - knowing to be perfectly correct; vasudevaá¸¥ - Vasudeva; api - also; tam - to him (Kaá¹sa); prÄ«taá¸¥ - being satisfied; praÅasya - pacifying more; prÄviÅat gá¹ham - entered his own house.
Although Kaá¹sa was a sinful demon, he believed that Vasudeva would never deviate from his word. The character of a pure devotee like Vasudeva is such that even so great a demon as Kaá¹sa firmly believed in his words and was satisfied. YasyÄsti bhaktir bhagavaty akiÃ±canÄ sarvair guá¹ais tatra samÄsate surÄá¸¥ (BhÄg. 5.18.12). All good attributes are present in a devotee, so much so that even Kaá¹sa believed in Vasudevaâs words without a doubt.