The origins of the Sunnah by Ahmed bin Hanbal

A book by Imam Ahmad, is considered one of the most important books in the report of the doctrine of the Sunnis and the community, in which: a report of the general controls and basic rules that control the doctrine of the predecessors that contradict the people of heresies, and the liberation of the origins of the doctrine of the surviving division of the Sunnis and the community that the Prophet...