ye-kāle dvi-bhuja - when the Lord appears as two-handed; nāma - named; vaibhava-prakāśa - vaibhava-prakāśa; catur-bhuja haile - when He becomes four-handed; nāma - named; prābhava-prakāśa - prābhava-prakāśa.

“When the Lord is two-handed He is called vaibhava-prakāśa, and when He is four-handed He is called prābhava-prakāśa.