Sayyiduna Abu Bakrah (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Acquire knowledge of the Qur'an and teach it to the people; learn the science of inheritance and teach it to the people. Soon a time will come upon the people when two men will dispute about an inheritance share and will not find anyone who can judge between them."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator, Muhammad bin Uqbah al-Sadusi, whom Ibn Hibban declared thiqah (trustworthy) and Abu Hatim declared da'if (weak), and a narrator, Sa'id bin Abi Ka'b, whom Ibn Hibban mentioned in his book "al-Thiqat". The remaining narrators of this report are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الفرائض / 7134