The Doors of Reward and Expiation of Sins is a short treatise mentioning some of the deeds from the authentic hadiths of the Messenger of Allah [Islamic phrases="Shallallahu 'alaihi wa Sallam"]H[/Islamic] that expiate sins and contain a great reward for the Muslims. The book has been compiled by the research department of Darussalam and gives guidance on achieving the ultimate reward that Allah has kept for us.