The word(s) "hot" appears 3 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) 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."

(سورة الكهف, Al-Kahf, Chapter #18, Verse #86)
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(2) In fierce hot wind and boiling water,

(سورة الواقعة, Al-Waaqia, Chapter #56, Verse #42)
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(3) They will enter in the hot blazing Fire.

(سورة الغاشية, Al-Ghaashiya, Chapter #88, Verse #4)
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