Musannaf Ibn Abi Shaybah 33090 — Reports on teaching the law

Abu al-Ahwas said that Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) stated: Whoever has acquired knowledge of the Qur'an should also acquire knowledge of the shares of inheritance (fara'id), and should not become like the man who was met by a Bedouin who asked him: "O servant of Allah! Are you a Muhajir?" He said: "Yes!" He asked: "One of my family has died and has left such and such." If he knows the answer, then that is knowledge given by Allah Almighty; and if he does not know it, the Bedouin says: "O company of Muhajirun! In what then are you superior to us?"