Skandapurana 5.279.29

5.279.29

30 siddheśvarotpattivarṇane siddhādhipanāmakahaṃsena bṛhaspatyājñayā putraprāptyartha liṃgaṃ saṃsthāpya pūjane kṛte tasya putraprāptiḥ, siddheśvaramāhātmyavarṇanam.... 37 2

30. In the description of the origin of Siddheśvara: the hamsa named Siddhādhipa, by command of Bṛhaspati, establishing a liṅga and performing worship for the sake of obtaining a son, and his obtaining a son; the description of the māhātmya of Siddheśvara. 37 2