Surah Taha, ayah 12

20:12

إِنِّيٓ أَنَا۠ رَبُّكَ فَٱخۡلَعۡ نَعۡلَيۡكَ إِنَّكَ بِٱلۡوَادِ ٱلۡمُقَدَّسِ طُوٗى ١٢

Innī ana rabbuka fakhla' na'layka innaka bil-wādil-muqaddasi tuwā

Indeed, I am your Lord, so remove your sandals. Indeed, you are in the blessed valley of Ṭuwā.