It is narrated from Sayyiduna Abu Namlah al-Ansari (may Allah be pleased with him) that he was with the Messenger of Allah (peace and blessings be upon him) when a man from among the Jews came and said: Does this deceased person speak? The Messenger of Allah (peace and blessings be upon him) said: "Allah knows best." The Jew said: I bear witness that it speaks. The Messenger of Allah (peace and blessings be upon him) said: "Whatever the People of the Book tell you, neither believe it nor deny it, and say: We believe in Allah, His Books and His Messengers. If it is true, you will not have called them liars, and if it is false, you will not have believed them."
Hadith Referenceالمعجم الكبير للطبراني / مسند من يعرف بالكنى / 19081