What is the ruling when the orphan reaches maturity and claims he had a stake in a previous sale made by the guardian?

Chapter on Selling the Musarrah (Animal with milk retained in udder)

Al-Mughni

Book of Sales

Book 12 · Issue 3 · Bab 5

Open in Qurani

Primary text

If the orphan reaches maturity and claims he had a benefit (*hiz*) in the sale, his claim is not accepted except with evidence. If there is no evidence, the statement of the guardian is accepted with his oath.