Shiva Purana

siva.sh/siva-purana/saturda-samhita/9/61

आगत्य तीर्थप्रवरे स्नानं कृत्वा विधानतः ।। तर्पयित्वा पितॄन्देवान्मुच्यते ब्रह्महत्यया ।। ६१।।

sanskrit

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