Shiva Purana
आगत्य तीर्थप्रवरे स्नानं कृत्वा विधानतः ॥ तर्पयित्वा पितॄन्देवान्मुच्यते ब्रह्महत्यया ॥ ६१॥
After coming to the foremost of holy centres, performing the ablution in accordance with the rules and by making the water-offering to the manes one is rid of Brahmahatyā.
english translation
Agatya tIrthapravare snAnaM kRtvA vidhAnataH ॥ tarpayitvA pitRRndevAnmucyate brahmahatyayA ॥ 61॥
hk transliteration by Sanscript