Skanda Purana 6.2.85.12

6.2.85.12

11 atha siddheśvaraliṃgamāhātmyavarṇanama, tatra siddhiprāptyartha devadāruvane tapaḥ kurvāṇe viprairākāśavāṇīśravaṇānmahākālavane gamanam, tatra tapastaptvā siddhiprāptidaliṃgasthāpanam, siddheśvaraliṃgamāhātmyavarṇanama ... 88

11. Now, the description of the glory of the Siddheśvara liṅga; therein, while practicing austerity in the Devadāru forest to attain perfection, brahmins going to the Mahākāla forest upon hearing a voice from the sky; performing austerity there, the installation of a liṅga that grants perfection; the description of the glory of the Siddheśvara liṅga. 88