Fideicommissorum libri
Ex libro II
Pomponius, Trusts, Book II. The person to whom payment is made in compliance with the terms of a trust, just as one to whom a legacy is bequeathed, is obliged to give security to return anything which he receives in excess of what he is entitled to under the Falcidian Law; as, for example, where the amount due under the Falcidian Law is still in suspense, on account of the condition upon which other trusts or legacies are dependent not having yet been fulfilled. But, according to the opinion of Cassius and the ancient authorities, where a minor is charged with a trust, he to whom the amount is paid should furnish security with reference to the property with which the substitute was charged; for although there may be a repetition of what has been paid under the provisions of the trust, which really is not due, still it is more satisfactory for security to be given to him by whom the money is paid, so that he may not sustain any loss through the party who receives it becoming insolvent.
Pomponius, Trusts, Book II. If an appointed heir is asked to transfer the estate to Titius, and Titius is asked to return it to the heir after a certain time, direct actions will be sufficient to establish the rights of the heir. 1If the heir, before he transfers the estate left in trust, alienates any portion of the same, or manumits a slave belonging to the estate, or destroys, breaks, or burns any of the property, no civil action can be brought against him, if he transfers the estate afterwards under the Trebellian Decree of the Senate, but suit can be brought against him under the trust, on account of the property which has been destroyed. If, however, the heir has committed any of these offences after the estate has been delivered, it must be held that he can be sued under the Aquilian Law; for instance, if he has either wounded or killed a slave belonging to the estate. 2If a temporary right of action is bequeathed to the estate, the time in which the heir could have brought it before transferring the estate will be charged against the person to whom the estate was transferred.