[ULPIANUS libro singulari regularum. ] §22.5.17.prPater et filius qui in potestate eius est, item duo fratres qui in eiusdem patris potestate sunt testes TESTIBUS utrique in eodem testamento uel eodem negotio fieri possunt, quoniam nihil nocet ex una domo plures testes alieno negotio adhiberi.
[ULPIANUS, in his single book of Rules.] A father and the son who is in his power, likewise two brothers who are in the power of the same father, can both become witnesses in the same will or the same transaction, since there is no objection to several witnesses from one household being employed in another person's transaction.