If a female slave claims paternity of a foundling, what are the rulings?

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If the claimant is a female slave, she is treated like a free woman; however, if her claim of paternity is accepted, her claim regarding the foundling's status as a slave is not accepted, because we do not accept a claim that causes harm to the person, just as we do not accept a claim regarding disbelief if an infidel claims the foundling is also an infidel.