A man caught a runaway slave in order to return him to his master. That slave ran away from him as well. Both of them, disputing, came to Hazrat Shurayh. He made that man a guarantor. When Hazrat Ali (may Allah be pleased with him) was informed of this decision, he said: "The judge made a mistake. He should have made him swear an oath that the slave ran away from him, and there would be no guarantee upon him."