CC Madhya 18.222
- ei-mata cali’ prabhu ‘prayāga’ āilā
- daśa-dina triveṇīte makara-snāna kailā
ei-mata—in this way; cali’—walking; prabhu—Śrī Caitanya Mahāprabhu; prayāga—the holy place named Prayāga; āilā—reached; daśa-dina—ten days; triveṇīte—at the confluence of the rivers Ganges and Yamunā; makara-snāna kailā—bathed during the festival of Makara, or Māgha-melā.
Śrī Caitanya Mahāprabhu finally arrived at Prayāga and for ten successive days bathed in the confluence of the rivers Yamunā and Ganges during the festival of Makara-saṅkrānti [Māgha-melā].
Actually the word triveṇī indicates the confluence of three rivers—namely the Ganges, Yamunā and Sarasvatī. Presently the Sarasvatī River is not visible, but the river Ganges and the river Yamunā merge at Allahabad.