De forma testamenti liber singularis
Dig. 32,98Idem libro singulari de forma testamenti. Si plures gradus sint heredum et scriptum sit ‘heres meus dato’, ad omnes gradus hic sermo pertinet, sicuti haec verba ‘quisquis mihi heres erit’. itaque si quis velit non omnes heredes legatorum praestatione onerare, sed aliquos ex his, nominatim damnare debet.
The Same, On the Form of a Will. Where there are several degrees of heirs, and the following clause appears in the will, “Let my heir give,” this applies to all the degrees, just as the following words, “Whoever shall be my heir,” do. Therefore, if anyone does not wish to burden all his heirs with the payment of legacies, but only some of them, he must charge them specifically by name.