وهذا بخلاف المدبّر وأمّ الولد، فإن الملك فيهما كامل
The *mudabbar* and *umm walad* are treated differently, because relevant ownership is regarded as complete in their cases.
In the historical technical vocabulary, a *mudabbar* was an enslaved person whose emancipation was connected to the owner's death; *umm walad* referred to an enslaved woman who bore the owner's child. Their legal status differs from that of a *mukātab*.
The issue is not merely that there are three legal labels. The relevant ownership incidents remain or are qualified in different ways, which affects whether the unqualified emancipation wording reaches each category.
This comparison illustrates the need to interpret a general expression alongside the legal feature to which its consequence is attached.