Caitanya-caritāmṛta 5.23
mathurā-dvārakāya nija-rūpa prakāśiyā nānā-rūpe vilasaye catur-vyūha haiñā
[mathuraa-dvaarakaaya nija-roopa prakaashiyaa naanaa-roope vilasaye chatur-vyooha hainaa]
Blended reading (Sanskrit + English inline)
mathurā-dvārakāya nija-rūpa prakāśiyā nānā-rūpe vilasaye catur-vyūha haiñā
Lord Kṛṣṇa manifests His own form in Mathurā and Dvārakā. He enjoys pastimes in various ways by expanding into the quadruple forms.
My note
Source: vedabase.io