Shiva Purana
तस्या निर्भद्रमन्विच्छन् राजा निर्विण्णमानसः ॥ चकार नानोपायान्स जपव्रतमखादिकान् ॥ २९ ॥
Dejected in mind the king wanted to get rid of Brahmahatyā. He tried japas, holy rites, sacrifices and various other means.
english translation
tasyA nirbhadramanvicchan rAjA nirviNNamAnasaH ॥ cakAra nAnopAyAnsa japavratamakhAdikAn ॥ 29 ॥
hk transliteration by Sanscript