Do the four paternal brothers and the wife inherit from the adopted son?

If the heirs are limited to the wife and paternal brothers, the wife receives one-fourth due to the absence of a direct descendant, as Allah Almighty says: "And for them [i.e., wives] is one fourth of what you leave if you have no child" (An-Nisa:12). The remainder goes to the paternal brothers. The inheritance is divided into sixteen shares: the wife receives four shares, and each paternal brother receives three shares. As for an adopted son, he does not inherit and is not considered a biological son to the one who adopted him, for Islam has nullified and forbidden adoption.