If you have already finished studying that book, can you move on to other study materials that can help you to stabilize your faith?
أَمَّا إِذَا أَنْهَيْتَهُ ،‏ فَٱدْرُسْ مَطْبُوعَةً أُخْرَى تُثَبِّتُكَ فِي ٱلْإِيمَانِ .‏