Mukhtasar Muslim

Talhah bin Musarrif says: I asked Abdullah bin Abi Awfa (may Allah be pleased with him), "Did the Messenger of Allah (peace and blessings be upon him) make a will (regarding wealth or anything else)?" He said, "No." Then I asked, "Then why was making a will made obligatory upon Muslims? Or why were they commanded to make a will?" He said, "The Prophet (peace and blessings be upon him) made a will to act upon the Book of Allah, the Exalted."