(The command was given:) “Strike with thy foot: here is (water) wherein to wash, cool and refreshing, and (water) to drink.”
. The recuperative process having begun, he was
commanded to strike the earth or a rock with his foot,
and a fountain or fountains gushed forth,-to give him a
bath and clean his body; to refresh his spirits; and to
give him drink and rest.
This is a fresh touch, not mentioned in Surah 21. or in
the Book of Job, but adding beautifully to our realisation
of the picture.
References:
Yusuf Ali, Abdullah. Translation and Commentary of the Quran. (surah 38 verse 42). Quran Arabic with English Translation & Commentary (Tafsir) by Abdullah Yusuf Ali, Free Download (quran4u.com)