Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 6
Sanskrit:
अहो अस्मदभूद् भूरि पित्रोर्वृजिनमार्ययो: ।यद्धेतो: पुत्रमरणं यद्धेतोर्बन्धनं तयो: ॥ ६ ॥
ITRANS:
aho asmad abhūd bhūripitror vṛjinam āryayoḥyad-dhetoḥ putra-maraṇaṁyad-dhetor bandhanaṁ tayoḥ
Translation:
Just see how much suffering I have caused My offenseless parents! Because of Me their sons were killed and they themselves imprisoned.
Purport:
Because Kaṁsa had heard a prophecy that the eighth son of Devakī would kill him, he tried to kill all her children. For the same reason, he imprisoned her and her husband, Vasudeva.