One of the old Imamate works is Ubeidollah Ibn Abi Rafi’s al-Sunan wal Ahkam wal Qadhaya, a well-known work whose text existed independently till the fourth or perhaps the fifth century. Nevertheless in the circles of Imamate hadith, especially the four Books, the book has not been cited and in other Imamate books of hadith only three narrations rare elated in whose chains the name of Ubeidol...