Section 3A. An executor, administrator, guardian, conservator or trustee who has in his hands personal property to which an executor, administrator, guardian, conservator or trustee duly appointed in another state or in a foreign country and duly qualified and acting is entitled may pay over and transfer the whole or any part of such personal property to such foreign fiduciary upon such terms and in such manner as the probate court by which such Massachusetts fiduciary was appointed, or, if not appointed by the probate court, as the probate court for any county where there is property to which such foreign fiduciary is entitled, may decree upon petition filed therefor. Proceedings upon such petition shall be governed by the provisions of section three. No such petition for a decree ordering distribution to a foreign executor or administrator shall be filed until the expiration of three months after the death of his testator or intestate. Payment or transfer by a Massachusetts fiduciary in accordance with a decree under this section or section three shall forever exonerate such fiduciary unless the decree is impeached for fraud or manifest error.