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

(1) One from among them said: "Kill not Yusuf (Joseph), but if you must do something, throw him down to the bottom of a well; he will be picked up by some caravan of travellers."

(سورة يوسف, Yusuf, Chapter #12, Verse #10)
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(2) So, when they took him away and they all agreed to throw him down to the bottom of the well, (they did so) and We revealed to him: "Indeed, you shall (one day) inform them of this their affair, when they know (you) not."

(سورة يوسف, Yusuf, Chapter #12, Verse #15)
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(3) Verily, it is a tree that springs out of the bottom of Hell-fire,

(سورة الصافات, As-Saaffaat, Chapter #37, Verse #64)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)