Skanda Purana 4.101.85

4.101.85

81 suragurorvacanādvṛtrahatyodbhavatrāsasaṃtaptendrasya kāśyāmuttaravāhinyāṃ snātvā gharmeśākhyaśivaliṃgasaṃnidhau tapaścaraṇam, brahmahatyānivṛttipūrvakamiṃdrasya pūrvavattejaḥprāptikathanam, durdamabhūpetihāsakathanapūrvakadharmeśamāhātmyakathanaṃ ca. ... 322 1

81. The performance of austerity by Indra—tormented by the terror arising from the killing of Vṛtra—near the Śivaliṅga named Dharmeśa after bathing in the north-flowing [Gaṅgā] at Kāśī on the advice of the preceptor of the gods; account of Indra regaining his former radiance following the removal of the sin of killing a brahmin; and account of the Dharmeśa-māhātmya preceded by the history of King Durdama. 322 1