The testimony of one whose hand was cut off

It is narrated from al-Hasan that a man of Quraysh stole a camel, so the Prophet (peace and blessings be upon him) had his hand cut off. He said: And his testimony used to be accepted.

Al-Sha'bi said: A man whose hand had been cut off testified before Shurayh, and he was praised for his goodness and virtue. Shurayh said: We accept the testimony of anyone on whom a prescribed punishment (hadd) has been carried out, so long as he is upright on the day he testifies, except for one punished for slander (qadhf), for his repentance is a matter between him and Allah.

Shurayh too accepted the testimony of a man whose hand had been cut off.