Shiva Purana
दुष्टपापसमाचारो मातृहा पितृहापि वा ॥ स्तवेनानेन जप्तेन तत्तत्पापात्प्रमुच्यते ॥ १८४ ॥
He commits evil sins and kills his mother or father. By chanting this hymn one is freed from that particular sin.
english translation
duSTapApasamAcAro mAtRhA pitRhApi vA ॥ stavenAnena japtena tattatpApAtpramucyate ॥ 184 ॥
hk transliteration by Sanscript