Shiva Purana
ब्रह्मप्राप्तिर्भवेत्तस्य कालविद्भिरितीरितम् ॥ ब्रह्महत्यादिकैः पापैर्मुच्यते नात्र संशयः ॥ ७॥
It is said by the scholars of time that he attains the Absolute Truth. There is no doubt that one is freed from the sins of killing a brahmin.
english translation
brahmaprAptirbhavettasya kAlavidbhiritIritam ॥ brahmahatyAdikaiH pApairmucyate nAtra saMzayaH ॥ 7॥
hk transliteration by Sanscript