What is the ruling when a sale is contracted based on a specific measure (e.g., ten cubits) and the actual measure is greater (e.g., eleven)?

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There are two established narrations concerning this surplus. The first narration dictates that the sale is void because the seller cannot be compelled to deliver the excess, as he only sold ten, nor can the buyer be compelled to accept only a portion when he bought the entirety, especially considering potential harm in shared ownership. The second narration holds the sale as valid, and the surplus belongs to the seller. This surplus is viewed as an addition that harms the buyer, thus not invalidating the sale, similar to a defect. The seller has the option to deliver the full, increased amount or just the originally stipulated measure. If the seller agrees to deliver the entirety, the buyer has no right to object, as it is an improvement. If the seller refuses to deliver the surplus, the buyer has the option to annul the contract or accept the agreed price plus a proportional amount for the excess. If the buyer accepts the stipulated measure, the seller remains a partner in the excess measure.