﴿ إِنِّىٓ أَنَا۠ رَبُّكَ فَٱخْلَعْ نَعْلَيْكَ ۖ إِنَّكَ بِٱلْوَادِ ٱلْمُقَدَّسِ طُوًۭى ﴾

“Verily, I am thy Sustainer! Take off, then, thy sandals! Behold, thou art in the twice hallowed valley,”

(Lo! I, even I, am thy Lord. So take off thy shoes) for his shoes were made of the skin of a dead ass, (for Lo! thou art in the holy valley of Tuwa) Tuwa is the name of the valley; it also said that Tuwa means: this valley has been crossed (tawathu) by prophets before you; it is also said that Tuwa is a well which was filled with stones (tuwiyyat bi'l-sakhr) in the valley where he found the tree.