Ambarīsha

The Srimad Bhāgavatam tells of Ambarīsha as one of the greatest devotees of Sriman Nārāyaṇa, so devoted that the Sudarshana Chakram had taken it upon himself to rush to his protection.

Once the sage Durvāsa came to visit Ambarīsha. The king was observing the Dvādashī vratam, in which the fast of Ekādashī must be broken, and his people fed, at the start of Dvādashī. Durvāsa told Ambarīsha that he would bathe and then join him, and Ambarīsha agreed to wait. But the hours went by and Durvāsa did not return. On the advice of the sage Vasishṭha, Ambarīsha broke his fast with a sip of sacred water, and at that very moment Durvāsa arrived.

Enraged, Durvāsa tore a lock of his hair and flung it to the ground, and it grew into a monstrous demon that rushed to devour Ambarīsha. At that moment the Sudarshana Chakram came to Ambarīsha's rescue and cut the demon to pieces. Then the Chakram turned and pursued Durvāsa himself.

Durvāsa fled, seeking refuge with Lord Brahmā, then with Lord Shiva, and at last in the abode of Sriman Nārāyaṇa Himself, but the Chakram pursued him still. The Lord told Durvāsa to go and fall at Ambarīsha's feet and beg his forgiveness. Durvāsa did so, Ambarīsha forgave him, and the Sudarshana Chakram ceased its pursuit.