Hazrat Abu Wa'il narrates that Hazrat Abdullah (may Allah be pleased with him) bought a slave girl for seven hundred dirhams. The payment had not yet been made when the owner of the slave girl disappeared. Hazrat Abdullah (may Allah be pleased with him) continued to announce about her for a year. Then he went to the mosque and began to give her price in charity, while saying, "O Allah! This is on his behalf. If he comes, it will be from me and obligatory upon me." Then he said, "Do the same with every lost or abandoned thing."