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

(21) It was not fitting for the people of Medina and the Bedouin Arabs of the neighbourhood, to refuse to follow Allah's Messenger, nor to prefer their own lives to his: because nothing could they suffer or do, but was reckoned to their credit as a deed of righteousness,- whether they suffered thirst, or fatigue, or hunger, in the cause of Allah, or trod paths to raise the ire of the Unbelievers, or received any injury whatever from an enemy: for Allah suffereth not the reward to be lost of those who do good;-

(22) whether We show thee (realised in thy life-time) some part of what We promise them,- or We take thy soul (to Our Mercy) (Before that),- in any case, to Us is their return: ultimately Allah is witness, to all that they do.

(23) So he said: "Embark ye on the Ark, In the name of Allah, whether it move or be at rest! For my Lord is, be sure, Oft-Forgiving, Most Merciful!"

(24) He said: "O my people! see ye whether I have a Clear (Sign) from my Lord, and He hath given me sustenance (pure and) good as from Himself? I wish not, in opposition to you, to do that which I forbid you to do. I only desire (your) betterment to the best of my power; and my success (in my task) can only come from Allah. In Him I trust, and unto Him I look.

(25) It is the same (to Him) whether any of you conceal his speech or declare it openly; whether he lie hid by night or walk forth freely by day.

(26) whether We shall show thee (within thy life-time) part of what we promised them or take to ourselves thy soul (before it is all accomplished),- thy duty is to make (the Message) reach them: it is our part to call them to account.

(27) They will all be marshalled before Allah together: then will the weak say to those who were arrogant, "For us, we but followed you; can ye then avail us to all against the wrath of Allah?" They will reply, "If we had received the Guidance of Allah, we should have given it to you: to us it makes no difference (now) whether we rage, or bear (these torments) with patience: for ourselves there is no way of escape."

(28) "O our Lord! truly Thou dost know what we conceal and what we reveal: for nothing whatever is hidden from Allah, whether on earth or in heaven.

(29) And to Allah doth obeisance all that is in the heavens and on earth, whether moving (living) creatures or the angels: for none are arrogant (before their Lord).

(30) Thy Lord hath decreed that ye worship none but Him, and that ye be kind to parents. whether one or both of them attain old age in thy life, say not to them a word of contempt, nor repel them, but address them in terms of honour.