Matsya Purana 179.4

179.4

krīḍamānaṃ tadā dṛṣṭvā hartuṃ devīṃ pracakrame.
tasya yuddhaṃ tadā ghoramabhavat saha śambhunā .. 179.4 ..

In ancient times there was a demon, as black as soot, who was known by the name of Andhaka He was invulnerable of the Devas and was constantly engaged in his asceticism. Seeing one day the Lord Śiva and Pârvatî enjoying in each others company, he wished to snatch away the latter from the Lord, when a most fearful battle ensued

between Him and the demon That battle was fought in the Mahâkâla forest, in the district of Avanti The Lord was very much oppressed by the demon when the Lord Rudra discharged the weapon called Pasupata Out of the blood that gushed from the body of that demon by the blow of that formidable arrow, thousands of Andhaka demons sprang up, and the gore of those demons also similarly multiplied itself into hundreds of demons—2 7.