It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The minor retains his right of pre-emption until he reaches maturity; when he reaches maturity, then if he wishes he may take it, and if he wishes he may leave it."
Only Abdullah bin Bazi' narrated it, and he is da'if (weak); and the two narrators below him, up to our shaykh's shaykh, are not used as proof.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشفعة / 11591