2كِتابٌ أُنزِلَ إِلَيكَ فَلا يَكُن في صَدرِكَ حَرَجٌ مِنهُ لِتُنذِرَ بِهِ وَذِكرىٰ لِلمُؤمِنينَAhmed & SamiraA Book was descended to you so no tightness/strain be in your chest (innermost) from it, to warn/give notice with it and a remembrance/reminder to the believers.