Lord Sri Krishna
Lord Jagannath, the Supreme Lord Sri Hari Himself, spoke these attractive words for the welfare of all:
The mlecchas who are born from mixed countries ruled by descendants of Kasyapa (demons) and the sudras will become brahmanas by initiation. They will wear sikhas and brahmana threads and will become well versed in the uncontaminated fruit of the Vedas (Srimad Bhagavatam). They will worship Me by the Yajna prescribed by the Lord of Lords, the protector of Sacidevi, Sri Chaitanya Mahaprabhu.
Reference: Bhavisya Purana, Pratisarga Chapter 20 verses 71-73