Amr bin Sulaym al-Zuraqi (may Allah have mercy on him) reported that it was said to Sayyiduna Umar (may Allah be pleased with him): "There is a boy here from Ghassan, near puberty, who has not yet reached puberty; his heir is in Syria, he is wealthy, and he has no one here except a cousin (the daughter of his paternal uncle)." Sayyiduna Umar (may Allah be pleased with him) said: "Then let him make a bequest for her." So he bequeathed to her a property called Bi'r Jusham. Amr bin Sulaym (may Allah have mercy on him) says: I sold that property for thirty thousand. His cousin, for whom he had made the bequest, was the mother of Amr bin Sulaym.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب المدبر / 21598