Al-Qamar 54:17
وَلَقَدْ يَسَّرْنَا ٱلْقُرْءَانَ لِلذِّكْرِ فَهَلْ مِن مُّدَّكِرٍ
Walaqad yassarna alqur-ana liththikrifahal min muddakir
"And We have certainly made the Qur’ān easy for remembrance, so is there any who will remember?"
Al-Qamar 54:17, translation by Sahih International
A short reflection
We have made the Quran easy to remember. So is there any who will be reminded? Repeated four times in one chapter.