Musnad Abu Ya'la al-Mawsili 112:16

Abdullah ibn Umar ibn Aban narrated to us, al-Muharibi narrated to us, from Ismail ibn Muslim, from al-Hasan and Qatadah, from Anas, that the Messenger of Allah (may Allah bless him and grant him peace) said: "Whoever has two tongues in the world, Allah will make for him two tongues of fire."