How does the application of 'ism al-fail' (اسم الفاعل) differ from 'sifat al-mushabbaha' (صفة المشبهة) in constructing attributive adjectives from verbs?

'Ism al-fa'il' (اسم الفاعل), or the active participle, is derived from a verb and denotes the *doerof an action. It indicates a temporary or ongoing quality or action performed by the subject. The pattern for deriving 'ism al-fa'il' from a triliteral verb is generally 'فاعل' (fā'il). For example, from the verb 'كتب' (kataba – he wrote), the 'ism al-fa'il' is 'كاتب' (kātib – writer). It describes someone who is currently or....