TEXT 19
evam jambu-phalanam atyucca-nipata-visirnanam anasthi-prayanam ibha-kaya-nibhanam rasena jambu nama nadi meru-mandara-sikharad ayuta-yojanad avani-tale nipatanti daksinenatmanam yavad ilavrtam upasyandayati.
SYNONYMS
evam—similarly; jambu-phalanam—of the fruits called jambu (the rose apple); ati-ucca-nipata—because of falling from a great height; visirnanam—which are broken to pieces; anasthi-prayanam—having very small seeds; ibha-kaya-nibhanam—and which are as large as the bodies of elephants; rasena—by the juice; jambu nama nadi—a river named Jambu-nadi; meru-mandara-sikharat—from the top of Merumandara Mountain; ayuta-yojanat—ten thousand yojanas high; avani-tale—on the ground; nipatanti—falling; daksinena—on the southern side; atmanam—itself; yavat—the whole; ilavrtamIlavrta-varsa; upasyandayati—flows through.
TRANSLATION
Similarly, the fruits of the jambu tree, which are full of pulp and have very small seeds, fall from a great height and break to pieces. Those fruits are the size of elephants, and the juice gliding from them becomes a river named Jambu-nadi. This river falls a distance of 10,000 yojanas, from the summit of Merumandara to the southern side of Ilavrta, and floods the entire land of Ilavrta with juice.
PURPORT
We can only imagine how much juice there might be in a fruit that is the size of an elephant but has a very tiny seed. Naturally the juice from the broken jambu fruits forms waterfalls and floods the entire land of Ilavrta. That juice produces an immense quantity of gold, as will be explained in the next verses.

Link to this page: https://prabhupadabooks.com/sb/5/16/19

If you Love Me Distribute My Books -- Srila Prabhupada