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

(11) And unto Midian (We sent) their brother, Shu'eyb. He said: O my people! Serve Allah. Ye have no other Allah save Him. Lo! a clear proof hath come unto you from your Lord; so give full measure and full weight and wrong not mankind in their goods, and work not confusion in the earth after the fair ordering thereof. That will be better for you, if ye are believers.

(12) And thou (Muhammad) art not occupied with any business and thou recitest not a Lecture from this (Scripture), and ye (mankind) perform no act, but We are Witness of you when ye are engaged therein. And not an atom's weight in the earth or in the sky escapeth your Lord, nor what is less than that or greater than that, but it is (written) in a clear Book.

(13) And unto Midian (We sent) their brother Shu'eyb. He said: O my people! Serve Allah. Ye have no other Allah save Him! And give not short measure and short weight. Lo! I see you well-to-do, and lo! I fear for you the doom of a besetting Day.

(14) O my people! Give full measure and full weight in justice, and wrong not people in respect of their goods. And do not evil in the earth, causing corruption.

(15) And walk not in the earth exultant. Lo! thou canst not rend the earth, nor canst thou stretch to the height of the hills.

(16) (Some) will say: They were three, their dog the fourth, and (some) say: Five, their dog the sixth, guessing at random; and (some) say: Seven, and their dog the eighth. Say (O Muhammad): My Lord is Best Aware of their number. None knoweth them save a few. So contend not concerning them except with an outward contending, and ask not any of them to pronounce concerning them.

(17) Those are they who disbelieve in the revelations of their Lord and in the meeting with Him. Therefor their works are vain, and on the Day of Resurrection We assign no weight to them.

(18) And We set a just balance for the Day of Resurrection so that no soul is wronged in aught. Though it be of the weight of a grain of mustard seed, We bring it. And We suffice for reckoners.

(19) And We made the son of Mary and his mother a portent, and We gave them refuge on a height, a place of flocks and watersprings.

(20) And those who accuse honourable women but bring not four witnesses, scourge them (with) eighty stripes and never (afterward) accept their testimony - They indeed are evil-doers -