What a witness should not speak of

It is narrated from Umarah that two men testified before Qadi Shurayh concerning some matter regarding a man. Al-A'mash said: I think that testimony was about a mule. The witnesses said: "We testify that this man bought this mule from so-and-so." Then one of the witnesses said: "And I testify that he is a sinful man." Shurayh said: "How do you know that he is sinful? Stand up, your testimony is not accepted."

It is narrated from al-Ja'd bin Dhakwan that a man came forward before Shurayh and called for a witness of his, saying: "Where is Rabi'ah al-Kuwayfir (the little unbeliever)?" He came, and Shurayh said: "You have admitted to 'Kuwayfir' (little unbeliever)." Then he rejected his testimony.

It is narrated from Sufyan that if two men testify against a man that he has divorced his wife, and then both retract their testimony, he said: "The divorce remains in effect. If the husband had not consummated the marriage, the husband will claim half of the dower from those witnesses; and if the husband had consummated it, then nothing is owed by the witnesses (that is, of the dower)."