The word(s) "whether" appears 56 time(s) in 53 verse(s) in Quran in Abdullah Yusuf Ali translation.

(41) The same is it to them whether thou admonish them or thou do not admonish them: they will not believe.

(42) "Such are Our Bounties: whether thou bestow them (on others) or withhold them, no account will be asked."

(43) "He that works evil will not be requited but by the like thereof: and he that works a righteous deed - whether man or woman - and is a Believer- such will enter the Garden (of Bliss): Therein will they have abundance without measure.

(44) "Without doubt ye do call me to one who is not fit to be called to, whether in this world, or in the Hereafter; our return will be to Allah; and the Transgressors will be Companions of the Fire!

(45) So persevere in patience; for the Promise of Allah is true: and whether We show thee (in this life) some part of what We promise them,- or We take thy soul (to Our Mercy) (before that),-(in any case) it is to Us that they shall (all) return.

(46) "Burn ye therein: the same is it to you whether ye bear it with patience, or not: Ye but receive the recompense of your (own) deeds."

(47) whether ye cut down (O ye Muslim!) The tender palm-trees, or ye left them standing on their roots, it was by leave of Allah, and in order that He might cover with shame the rebellious transgresses.

(48) It is equal to them whether thou pray for their forgiveness or not. Allah will not forgive them. Truly Allah guides not rebellious transgressors.

(49) And whether ye hide your word or publish it, He certainly has (full) knowledge, of the secrets of (all) hearts.

(50) 'And we understand not whether ill is intended to those on earth, or whether their Lord (really) intends to guide them to right conduct.