Matsyapurana 69.51

69.51

anugamya padānyaṣṭau putrabhāryāsamanvitaḥ
prīyatāmatra deveśaḥ keśavaḥ kleśanāśanaḥ //

The devotee should follow the Brâhmaṇas for eight steps in company of his son, wife, etc., and should say : “Keśava! the destroyer of all evils, be pleased. Śiva is enthroned in the heart of Viṣṇu and the Viṣṇu in the heart of Śiva. As I do not see any difference between the two, so there may be long life and prosperity to me.”—51-52.