Quran

 69:12

لِنَجْعَلَهَا لَكُمْ تَذْكِرَةً وَتَعِيَهَا أُذُنٌ وَاعِيَةٌ ﴿١٢﴾

12. To make it a lesson for you—and so that retaining ears may retain it.