SB 10.78.31-32

ajānataivācaritas
 tvayā brahma-vadho yathā
yogeśvarasya bhavato
 nāmnāyo ’pi niyāmakaḥ
yady etad-brahma-hatyāyāḥ
 pāvanaṁ loka-pāvana
cariṣyati bhavāḻ loka-
 saṅgraho ’nanya-coditaḥ
Word for word: 
ajānatā — not knowing; eva — only; ācaritaḥ — done; tvayā — by You; brahma — of a brāhmaṇa; vadhaḥ — the killing; yathā — actually; yoga — of mystic power; īśvarasya — for the Lord; bhavataḥ — Yourself; na — not; āmnāyaḥ — scriptural injunction; api — even; niyāmakaḥ — regulator; yadi — if; etat — for this; brahma — of a brāhmaṇa; hatyāyāḥ — killing; pāvanam — purifying atonement; loka — of the world; pāvana — O purifier; cariṣyati — executes; bhavān — Your good self; loka-saṅgrahaḥ — benefit for the people in general; ananya — by no one else; coditaḥ — impelled.
Translation: 
“You have unknowingly killed a brāhmaṇa. Of course, even the injunctions of revealed scripture cannot dictate to You, the Lord of all mystic power. But if by Your own free will You nonetheless carry out the prescribed purification for this slaying of a brāhmaṇa, O purifier of the whole world, people in general will greatly benefit by Your example.”