Izhhaar means ‘to make clear or distinct’. In the context of the recitation of the Qur’an, it means ‘pronouncing a letter without ġunnah, i.e. without a sound from the nasal cavity.
Rule Color:
بِسۡمِ ٱللَّهِ
Rule Letters:
(ا,ح,خ,ع,غ,ه) < (نْ or ـًـٍـٌ)