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Any person, whether he has an interest or not in the fulfilment of the obligation, and whether the debtor knows and approves it or is not aware thereof, can make the payment.\nThe person paying for the account of another may recover from the debtor what he may have paid, unless he has done it against his express will.\nIn such case he can only recover from the debtor insofar as the payment has been useful to him.\nHistory —Civil Code, 1930, § 1112.