Translation: (Pradyumna reading) "Sin will overcome us if we slay such aggressors. Therefore it is not proper for us to kill the sons of Dhṛtarāṣṭra and our friends. What should we gain, O Kṛṣṇa, husband of the goddess of fortune, and how could we be happy by killing our own kinsmen?"
Prabhupāda: So pāpam eva. Pāpam means sinful activities, and puṇyam is pious. So people should consider in every activity, whether it is pāpam or puṇyam, whether it is virtuous or sinful activities. But the asuras, they do not know.