Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) narrates: One month before the Prophet (peace and blessings be upon him) was sent, we were around an idol of ours, and we had sacrificed a camel. Meanwhile a caller from inside the idol's belly said: "Hear a wondrous thing: polytheism and idols are gone, and shooting stars are being hurled, because of a prophet who has come in Makkah, whose name is Ahmad, and his place of emigration will be Yathrib."
Al-Bazzar recorded it from his teacher Abdullah bin Shabib, and he is da'if (weak).