Śrīmad-Bhāgavatam · Text 10.4.15
Who is speaking and story frame
अहो भगिन्यहो भाम मया वां बत पाप्मना ।
पुरुषाद इवापत्यं बहवो हिंसिता: सुता: ॥ १५ ॥
aho bhaginy aho bhāma
mayā vāṁ bata pāpmanā
puruṣāda ivāpatyaṁ
bahavo hiṁsitāḥ sutāḥ
Alas, my sister! Alas, my brother-in-law! I am indeed so sinful that exactly like a man-eater [Rākṣasa] who eats his own child, I have killed so many sons born of you.
Read Śrīla Prabhupāda's purport on Vedabase.io