The word(s) "best" appears 257 time(s) in 234 verse(s) in Quran in Abdullah Yusuf Ali translation.

(61) Nor could they spend anything (for the cause) - small or great- nor cut across a valley, but the deed is inscribed to their credit: that Allah may requite their deed with the best (possible reward).

(62) Of them there are some who believe therein, and some who do not: and thy Lord knoweth best those who are out for mischief.

(63) Moses prayed: "Our Lord! Thou hast indeed bestowed on Pharaoh and his chiefs splendour and wealth in the life of the present, and so, Our Lord, they mislead (men) from Thy Path. Deface, our Lord, the features of their wealth, and send hardness to their hearts, so they will not believe until they see the grievous penalty."

(64) We settled the Children of Israel in a beautiful dwelling-place, and provided for them sustenance of the best: it was after knowledge had been granted to them, that they fell into schisms. Verily Allah will judge between them as to the schisms amongst them, on the Day of Judgment.

(65) Follow thou the inspiration sent unto thee, and be patient and constant, till Allah do decide: for He is the best to decide.

(66) "(And to preach thus), 'Seek ye the forgiveness of your Lord, and turn to Him in repentance; that He may grant you enjoyment, good (and true), for a term appointed, and bestow His abounding grace on all who abound in merit! But if ye turn away, then I fear for you the penalty of a great day:

(67) He it is Who created the heavens and the earth in six Days - and His Throne was over the waters - that He might try you, which of you is best in conduct. But if thou wert to say to them, "Ye shall indeed be raised up after death", the Unbelievers would be sure to say, "This is nothing but obvious sorcery!"

(68) "I tell you not that with me are the treasures of Allah, nor do I know what is hidden, nor claim I to be an angel. Nor yet do I say, of those whom your eyes do despise that Allah will not grant them (all) that is good: Allah knoweth best what is in their souls: I should, if I did, indeed be a wrong-doer."

(69) "That which is left you by Allah is best for you, if ye (but) believed! but I am not set over you to keep watch!"

(70) 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.