Skandapurana 16.36.14

16.36.14

vṛṣatīrthe mahāpuṇye prācīkūlasamāśrite ..
nivṛtte bhārate yuddhe tasmiṃstīrthe kirīṭinā ..
prāyaścittaṃ purā cīrṇaṃ viṣṇunā preritātmanā ..14..

At the extremely holy Vṛṣatīrtha situated on the bank of the eastward-flowing river, / When the Bhārata war had ceased, an expiation was performed in ancient times at that sacred ford / By the diadem-wearer [Arjuna], whose self was prompted by Viṣṇu.