Surah Al-Qamar (The Moon), Verse 22

وَلَقَدْ یَسَّرْنَا الْقُرْاٰنَ لِلذِّكْرِ فَهَلْ مِنْ مُّدَّكِرٍ 

Wa laqad yassarnal Qur'aana liz zikri fahal min muddakir

“But We have indeed made the Qur'an easy to understand and remember: then is there any that will receive admonition?”

Quran 54:22 (Yusuf Ali Translation)