Sura 23 Al-Mu'minun (The Believers), aya 66

1. قَدْ كَانَتْ آيَاتِي تُتْلَىٰ عَلَيْكُمْ فَكُنْتُمْ عَلَىٰ أَعْقَابِكُمْ تَنْكِصُونَ

   My verses had already been recited to you, but you were turning back on your heels

   23:66

Tafsiri: Saheeh International