What it means
The 2nd house holds savings and speech. The 11th holds gains and the network that brings them. A Dhana yoga forms when the lords of the two houses link: same house, exchange of signs, or an aspect between them.
This version adds a support check. Jupiter, the planet of growth, must either sit in the 2nd or 11th house or look at one of them. Not every classical author asks for this. It is a stricter reading, so fewer charts pass.
A pass reads as a person for whom money comes steadily and from more than one source. It says nothing about how much. Judge the size from the strength of the planets involved.
Compare it with "Three Signs of Wealth Out of Five" in this set. That one is looser. This one is picky. Which one do you pass?