It has been mentioned that the Shuroot of At-Takleef are three: Al-Buloogh, Al-Qudrah and Al-‘Aql. We will now examine the subject of the Ahliyah (competence or qualification) and its categories and its obstacles or preventative matters in summary:

Al-Ahliyah linguistically means: As-Salaahiyah (suitability, appropriateness) and so it is said: The man is Ahl (suitable/appropriate) to work in such and such a field, in the case where he was Saalih (suitable) for it.

Al-Ahliyah according to the Istilaah of the Usooliyeen: It represents the aptness or suitability of the human in respect to that which is assigned to him in terms of performance or what is assigned to him or upon him in terms of Huqooq (rights) (i.e. competence).