Lend him the money he needs, or pretend you don't have any money and don't interfere in his life (don't stop him, ignore him so he can have the freedom to gamble). Or will you lead and treat him out of this gambling addiction?
He doesn't want to be help, or at least that's what I got from him, and now this guys is out of business and out of money and for sure he has problems with his wife and kids too. But how can you extend your hands and help when the gamblers himself doesn't want to be help? So it's a dilemma on our end, on the other hand we wanted to aid him, but then again, it should start from the gamblers themselves to initiate that interference.
We can not help him if he doesn't want to be help but we can try to reminds him about his problem and find the solution for him so he can start to fix it. But that will needs awareness from him because we can not force him to follow what we suggest so that will be up to him. Yes, that is a dilemma but we can not give him the money because he can use that to playing gambling without we know. What we can do is just gives him his daily needs to helps him survive while he figure out the ways to solve his problem.