The word(s) "both" appears 48 time(s) in 48 verse(s) in Quran in Muhammad Pickthal translation.

(31) He said: We will strengthen thine arm with thy brother, and We will give unto you both power so that they cannot reach you for Our portents. Ye twain, and those who follow you, will be the winners.

(32) But when there came unto them the Truth from Our presence, they said: Why is he not given the like of what was given unto Moses? Did they not disbelieve in that which was given unto Moses of old? They say: Two magics that support each other; and they say: Lo! in both we are disbelievers.

(33) See ye not how Allah hath made serviceable unto you whatsoever is in the skies and whatsoever is in the earth and hath loaded you with His favours both without and within? Yet of mankind is he who disputeth concerning Allah, without knowledge or guidance or a scripture giving light.

(34) And We set, between them and the towns which We had blessed, towns easy to be seen, and We made the stage between them easy, (saying): Travel in them safely both by night and day.

(35) And the two seas are not alike: this, fresh, sweet, good to drink, this (other) bitter, salt. And from them both ye eat fresh meat and derive the ornament that ye wear. And thou seest the ship cleaving them with its prow that ye may seek of His bounty, and that haply ye may give thanks.

(36) When We sent unto them twain, and they denied them both, so We reinforced them with a third, and they said: Lo! we have been sent unto you.

(37) Then lo! this day they (both) are sharers in the doom.

(38) Then, when they had both surrendered (to Allah), and he had flung him down upon his face,

(39) He said: O Iblis! What hindereth thee from falling prostrate before that which I have created with both My hands? Art thou too proud or art thou of the high exalted?

(40) Then turned He to the heaven when it was smoke, and said unto it and unto the earth: Come both of you, willingly or loth. They said: We come, obedient.