Surah Sad 38:42

ٱرْكُضْ بِرِجْلِكَ ۖ هَـٰذَا مُغْتَسَلٌۢ بَارِدٌ وَشَرَابٌ

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

Translation: Saheeh International

Tafsir

And it was said to him ‘Stamp your foot on the ground — and he stamped it and a spring of water gushed forth and it was said This is a cool bath cool water for you to wash with and a drink’ for you to drink of. …

Excerpt from Tafsir al-Jalalayn, commentary on 38:42, via Quran.com. The reader has the full commentary and 9 more tafsirs.