Matsya Purana 266.23

266.23

dharmasākṣī viśuddhātmā tasmai nityaṃ namo namaḥ .
nirṛtistu pumān kṛṣṇaḥ sarvarakṣo'dhipo mahān .. 266.22

Salutations always to Dharmarâja who is shining like the blue lotus, adorned with a coronet and sceptre He is the witness of all actions and righteousness Salutations always to Nirṛtti who is black in appearance, the Lord of all the Rakṣasas, armed with a sword and endowed with glory.—22-23