What is the master's right regarding lost property taken by his slave after the slave has announced it?

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If the master becomes aware of the lost property taken by his slave, he has the right to reclaim it from the slave because it stems from the slave's acquisition. If the master seizes it after the slave has announced it, the master acquires ownership. If the slave had not announced it, the master must announce it for a full year. If the slave announced it for part of the year, the master must complete the remaining time of the announcement.