When إِنَّ and the Emphatic Lām Occur Together

Emphasis in Nominal Sentences

إِنَّ and the emphatic lām cannot both remain at the very beginning. إِنَّ stays first, while the lām moves to a later part of the sentence. It is then called لام مزحلقة (the displaced lām).

With lām
With إِنَّ and the displaced lām

الشِّرْكُ لَظُلْمٌ عَظِيمٌ
إِنَّ الشِّرْكَ لَظُلْمٌ عَظِيمٌ

فِي ذَٰلِكَ لَآيَةٌ
إِنَّ فِي ذَٰلِكَ لَآيَةً