Grammatical rules are deduced from Arabic spoken by ideally intuitive Arabic
speakers, and illustration is the spirit of the rule, endowing it with life, pleasure, and
originality. The Arabic used in illustration is that of the holy Quran, sayings
of the Prophet
as well as renowned poetic and prosaic statements by Arabs from the Jahileah period up to
150 Hizra,i.e, the end of the period of providing arguments. The term illustration is an
original Arabic term that came out of Arab concern over mistakes in Arabic. The holy
Quran is the source of illustrations, as it is the pillar upon which all other illustrations
depend.
This paper tries to study the relationship between the grammatical rule and
illustrations as well as to demonstrate the motives for illustration, its mechanism,
principles, and sources. It also tries to address some equivalents such as provision of
argument and evidence as well as analogy.