The word(s) "stain" appears 22 time(s) in 21 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) They stained his shirt with false blood. He said: "Nay, but your minds have made up a tale (that may pass) with you, (for me) patience is most fitting: Against that which ye assert, it is Allah (alone) Whose help can be sought"..

(12) Say: "Who is the Lord and Sustainer of the heavens and the earth?" Say: "(It is) Allah." Say: "Do ye then take (for worship) protectors other than Him, such as have no power either for good or for harm to themselves?" Say: "Are the blind equal with those who see? Or the depths of darkness equal with light?" Or do they assign to Allah partners who have created (anything) as He has created, so that the creation seemed to them similar? Say: "Allah is the Creator of all things: He is the One, the Supreme and Irresistible."

(13) "Now draw thy hand close to thy side: It shall come forth white (and shining), without harm (or stain),- as another Sign,-

(14) Who abstain from sex,

(15) "Now put thy hand into thy bosom, and it will come forth white without stain (or harm): (these are) among the nine Signs (thou wilt take) to Pharaoh and his people: for they are a people rebellious in transgression."

(16) "Move thy hand into thy bosom, and it will come forth white without stain (or harm), and draw thy hand close to thy side (to guard) against fear. Those are the two credentials from thy Lord to Pharaoh and his Chiefs: for truly they are a people rebellious and wicked."

(17) It is Allah Who sustains the heavens and the earth, lest they cease (to function): and if they should fail, there is none - not one - can sustain them thereafter: Verily He is Most Forbearing, Oft-Forgiving.

(18) Those who sustain the Throne (of Allah) and those around it Sing Glory and Praise to their Lord; believe in Him; and implore Forgiveness for those who believe: "Our Lord! Thy Reach is over all things, in Mercy and Knowledge. Forgive, then, those who turn in Repentance, and follow Thy Path; and preserve them from the Penalty of the Blazing Fire!

(19) And thy garments keep free from stain!

(20) And other faces that Day will be dust-stained,