The funny thing of the story is that guy celebrated his win by salat because he is religious and a muslim, the problem is islam forbids betting or gambling on anyway (strict rules in islam) just like ignoring that and doing something bad in islams principes. Anyway this guy is really lucky to win such a prise with a very small amount he risked, its a very good odd though and also im wondering which game did he play or bet on
I'm surprised to read that he is a Muslim I guess he is not a devout one because as I know gambling is forbidden in Islam he will set himself as a bad example for letting people know that he win big and even goes to pray in their Mosque to pray, he should have kept it to himself, his life will be complicated because of this and he will need to explain his action besides putting himself to gossip and in danger as well.
If gambling is forbidden in Islam but there are still Muslims that are big fan of making gambling which is not a lie. Apart from religion, we have the power to play and do what we like depending on the nature of things.
If you are hungry and you have not money, you can see a better opportunity in gambling to better you life.