Qur'ān 38:42 · Sad (ص)

ٱرْكُضْ بِرِجْلِكَ ۖ هَـٰذَا مُغْتَسَلٌۢ بَارِدٌۭ وَشَرَابٌۭ

[So he was told], "Strike [the ground] with your foot; this is a [spring for] a cool bath and drink."