Abu Ubaydah narrates that Sayyiduna Abdullah (may Allah be pleased with him) used to say: Whoever learns the Qur'an should also learn the fara'id (laws of inheritance). If a Bedouin meets him and says: O emigrant! Do you recite the Qur'an? He says: Yes. The Bedouin will say: I too recite the Qur'an. If he says: Do you know the science of fara'id? and he says: Yes, then that is fine; but if he says: No, the Bedouin will say: What superiority do you have over me?
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الفرائض / 12180