is a chief,” (1) thus calling him a son.
“Whether he is barred by an insolvent heir or not; and [maintenance is due] to everyone who would inherit from him by a prescribed share or as a residuary, but not by kinship alone, apart from his direct ascendants and descendants—whether the other person actually inherits from him, such as a brother, or does not, such as a paternal aunt or a freed slave—in a reasonable manner, provided that the person entitled to maintenance is poor and unable to earn a living, …”
His statement, “whether he is barred by an insolvent heir or not”: the pronoun in “barred” refers to the provider. That is, reciprocal inheritance is not a condition. Thus, even if the provider is barred by an insolvent heir, maintenance remains obligatory.
For example, if a man has a poor father and a poor grandfather, he must support his father because he is his son and heir. He must also support his grandfather, even though in this case he does not inherit from him.
His statement, “or not,” means: or if he is not barred by an insolvent heir. For example, a man has an enslaved father and a free grandfather. This father does not bar the grandson; rather, the grandson inherits, because an enslaved father does not inherit, and one barred due to a disqualifying attribute does not bar others. Accordingly, he must support his grandfather.
Likewise, if it is assumed that he has a grandfather but no father, he must support him, because he is not barred.
His statement, “and to everyone who would inherit from him by a prescribed share or as a residuary,” means that maintenance, or the remainder of it, is obligatory for everyone who inherits by a prescribed share or as a residuary. Heirs are either fixed-share heirs, residuary heirs, or relatives who inherit by kinship alone. A person may combine a prescribed share and residuary inheritance, either through two distinct causes or through one cause with two aspects.
An example of two causes is where a man marries his paternal cousin, and she has no residuary heir other than him. In that case, he inherits by a prescribed share by virtue of marriage, and as a residuary by virtue of blood relation.