The word(s) "bottom" appears 4 time(s) in 4 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) Said one of them: "Slay not Joseph, but if ye must do something, throw him down to the bottom of the well: he will be picked up by some caravan of travellers."

(سورة يوسف, Yusuf, Chapter #12, Verse #10)
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(2) So they did take him away, and they all agreed to throw him down to the bottom of the well: and We put into his heart (this Message): 'Of a surety thou shalt (one day) tell them the truth of this their affair while they know (thee) not'

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

(سورة الصافات, As-Saaffaat, Chapter #37, Verse #64)
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(4) Will have his home in a (bottomless) Pit.

(سورة القارعة, Al-Qaari'a, Chapter #101, Verse #9)
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