[ULPIANUS libro octogensimo primo ad edictum. ] §39.2.28.prIn hac stipulatione uenit, quanti ea res erit.
[ULPIANUS in the eighty-first book on the Edict.] In this stipulation, the question is how much the interest will be.
et ideo Cassius scribit eum, qui damni infecti stipulatus est, si propter metum ruinae ea aedificia, quorum nomine sibi cauit, fulsit, impensas eius rei ex stipulatu consequi posse: idemque iuris esse, cum propter uitium communis parietis qui cauit sibi damni infecti, onerum eorum releuandorum gratia, quae in parietem incumbunt, aedificia sua fulsit.
And therefore Cassius writes that a person who has stipulated for security against threatened damage can, if through fear of ruin he has shored up those buildings on account of which security was given to him, recover the expenses of that work on the basis of the stipulation; and that the same rule of law applies when, because of a defect in a common wall, a person who has secured himself against threatened damage has shored up his own buildings for the sake of relieving those loads which press upon the wall.
in eadem causa est detrimentum quoque propter emigrationem inquilinorum, quod ex iusto metu factum est.
In the same position is also the loss due to the departure of tenants, which has occurred from a justified fear.
Aristo autem non male adicit, sicuti hic exigit Cassius, ut si iustus metus migrandi causam praebuerit, ita in eius personam qui fulsit eadem Cassium dicere debuisse, si iusto metu ruinae fulcire coactus est.
Aristo, however, not without reason adds that, just as Cassius here requires that a justified fear should have provided the cause for moving, so Cassius ought to have said the same in the case of the person who shored up, if he was compelled to shore up by a justified fear of ruin.