SB 10.78.31-32

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.