Telah disebutkan bahawa syarat-syarat At-Takleef ada tiga: Al-Buloogh, Al-Qudrah dan Al-‘Aql. Kini kita akan meneliti perkara Al-Ahliyah (kelayakan atau kecekapan) beserta kategori-kategorinya dan halangan-halangan atau perkara-perkara yang menghalangnya, secara ringkas.

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 dari segi bahasa bermaksud: As-Salaahiyah (kelayakan, kesesuaian), dan kerana itu dikatakan: Lelaki itu Ahl (layak/sesuai) untuk bekerja dalam bidang sekian-sekian, apabila dia Saalih (sesuai) untuknya.

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 menurut istilah para ahli usul: Ia menggambarkan kelayakan atau kesesuaian manusia berkenaan dengan apa yang dibebankan kepadanya dari segi pelaksanaan, atau apa yang diwajibkan kepadanya atau ditetapkan ke atasnya dari segi huquq (hak-hak) (iaitu kecekapan).

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).