Is it permissible for someone who volunteered for an Islamic charity, and whose efforts resulted in a large sum of money for the charity, to demand a large financial share, claiming that the insurance company included his share within the total compensation for the charity?

The question relates to several matters: A person is claiming a large sum of money from the association, alleging that the insurance company allotted him a share of it. This point needs clarification to enable an answer. Also, the questioner did not specify the type of insurance (cooperative or commercial), nor whether the association is the insured or the beneficiary. We have previously provided detailed explanations regarding insurance issues.