one’s own wallet
Он сказал, что оставил свой кошелёк дома.
He said that he had left his wallet at home.
Он уронил свой кошелёк, и теперь он мой.
He dropped his wallet, and now it’s mine.
Give me your wallet.
I forgot my wallet.
Том отдал Маше свой кошелёк.
Tom gave Masha his wallet.