Musnad Ahmad 25:1652

Rawh narrated to us, Hammad narrated to us, from Abdullah ibn Uthman ibn Khuthaym, from Sa’id ibn Jubayr, from Ibn Abbas, that the Prophet, peace and blessings of Allah be upon him, said: "Allah, Blessed and Exalted is He, shall surely resurrect the Stone on the Day of Resurrection, and it will have two eyes with which it sees, and a tongue that speaks. It will bear witness for whoever touched it in truth."