The word(s) "mud" appears 33 time(s) in 32 verse(s) in Quran in Muhammad Pickthal translation.

(11) Naught hindereth Us from sending portents save that the folk of old denied them. And We gave Thamud the she-camel - a clear portent save to warn.

(12) Till, when he reached the setting-place of the sun, he found it setting in a muddy spring, and found a people thereabout. We said: O Dhu'l-Qarneyn! Either punish or show them kindness.

(13) Nay, say they, (these are but) muddled dreams; nay, he hath but invented it; nay, he is but a poet. Let him bring us a portent even as those of old (who were Allah's messengers) were sent (with portents).

(14) If they deny thee (Muhammad), even so the folk of Noah, and (the tribes of) A'ad and Thamud, before thee, denied (Our messengers);

(15) And (the tribes of) A'ad and Thamud, and the dwellers in Ar-Rass, and many generations in between.

(16) (The tribe of) Thamud denied the messengers (of Allah)

(17) And We verily sent unto Thamud their brother Salih, saying: Worship Allah. And lo! they (then became two parties quarrelling.

(18) And Pharaoh said: O chiefs! I know not that ye have a god other than me, so kindle for me (a fire), O Haman, to bake the mud; and set up for me a lofty tower in order that I may survey the god of Moses; and lo! I deem him of the liars.

(19) And (the tribes of) A'ad and Thamud! (Their fate) is manifest unto you from their (ruined and deserted) dwellings. Satan made their deeds seem fair unto them and so debarred them from the Way, though they were keen observers.

(20) And (the tribe of) Thamud, and the folk of Lot, and the dwellers in the wood: these were the factions.