The word(s) "mud" appears 34 time(s) in 33 verse(s) in Quran in Mohsin Khan translation.

(11) And in some parts of the night (also) offer the Salat (prayer) with it (i.e. recite the Qur'an in the prayer), as an additional prayer (Tahajjud optional prayer - Nawafil) for you (O Muhammad صلى الله عليه و سلم). It may be that your Lord will raise you to Maqam Mahmud (a station of praise and glory, i.e. the honour of intercession on the Day of Resurrection.) .

(12) And these towns (population, - 'Ad, Thamud) We destroyed them when they did wrong. And We appointed a fixed time for their destruction.

(13) Until, when he reached the setting place of the sun, he found it setting in a spring of black muddy (or hot) water. And he found near it a people. We (Allah) said (by inspiration): "O Dhul-Qarnain! Either you punish them, or treat them with kindness."

(14) And if they belie you (O Muhammad صلى الله عليه وسلم), so did belie before them, the people of Nuh (Noah), 'Ad and Thamud, (their Prophets).

(15) And (also) 'Ad and Thamud, and the Dwellers of Ar-Rass, and many generations in between.

(16) Thamud (people) belied the Messengers.

(17) And indeed We sent to Thamud their brother Salih, saying: "Worship Allah (Alone and none else). Then look! They became two parties (believers and disbelievers) quarreling with each other."

(18) And 'Ad and Thamud (people)! And indeed (their destruction) is clearly apparent to you from their (ruined) dwellings. Shaitan (Satan) made their deeds fair-seeming to them, and turned them away from the (Right) Path, though they were intelligent.

(19) So We punished each (of them) for his sins; of them were some on whom We sent Hasib (a violent wind with shower of stones) [as on the people of Lut (Lot)], and of them were some who were overtaken by As-Saihah [torment - awful cry. (as Thamud or Shu'aib's people)], and of them were some whom We caused the earth to swallow [as Qarun (Korah)], and of them were some whom We drowned [as the people of Nuh (Noah), or Fir'aun (Pharaoh) and his people]. It was not Allah Who wronged them, but they wronged themselves.

(20) And Thamud, and the people of Lut (Lot), and the Dwellers of the Wood: such were the Confederates.