pratiśrutam - it is promised; ca - and; bhavatā - by you; pāñcālyai - unto the daughter of the King of Pāñcāla (Draupadī); śṛṇvataḥ - which was heard; mama - by Me personally; āhariṣye - must I bring; śiraḥ - the head; tasya - of him; yaḥ - whom; te - your; mānini - consider; putra-hā - the killer of your sons.

Furthermore, I have personally heard you promise Draupadī that you would bring forth the head of the killer of her sons.