Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: "Acquire knowledge and teach it to the people, acquire the knowledge of inheritance and teach it to the people, acquire the knowledge of the Qur'an and teach it to the people. Soon I will pass away and soon knowledge will also be taken away, and tribulations will appear, to the extent that two men will differ regarding the shares of inheritance, and they will not find anyone who can decide between them."