Musnad Ahmad 32:1063

Bahz narrated to us, Hammad narrated to us, Qatadah narrated to us, from Anas, that a slave girl was found with her head between two stones. It was said to her: "Who did this to you? Was it so-and-so? Was it so-and-so?" until they named a Jew. She signaled with her head: "Yes." The Jew was seized and he confessed. The Prophet, peace and blessings of Allah be upon him, ordered him [to be punished], and his head was crushed with stones.