The word(s) "ill" appears 2805 time(s) in 1953 verse(s) in Quran in Mohsin Khan translation.

(331) Such is Allah, your Lord! La ilaha illa Huwa (none has the right to be worshipped but He), the Creator of all things. So worship Him (Alone), and He is the Wakil (Trustee, Disposer of affairs, Guardian) over all things.

(332) Verily, proofs have come to you from your Lord, so whosoever sees, will do so for (the good of) his ownself, and whosoever blinds himself, will do so to his own harm, and I (Muhammad صلى الله عليه وسلم) am not a watcher over you.

(333) Follow what has been revealed to you (O Muhammad صلى الله عليه وسلم) from your Lord, La ilaha illa Huwa (none has the right to be worshipped but He) and turn aside from Al-Mushrikun

(334) Had Allah willed, they would not have taken others besides Him in worship. And We have not made you a watcher over them nor are you a Wakil (disposer of affairs, guardian, trustee) over them.

(335) And they swear their strongest oaths by Allah, that if there came to them a sign, they would surely believe therein. Say: "Signs are but with Allah and what will make you (Muslims) perceive that (even) if it (the sign) came, they will not believe?"

(336) And even if We had sent down unto them angels, and the dead had spoken unto them, and We had gathered together all things before their very eyes, they would not have believed, unless Allah willed, but most of them behave ignorantly.

(337) And so We have appointed for every Prophet enemies - Shayatin (devils) among mankind and jinn, inspiring one another with adorned speech as a delusion (or by way of deception). If your Lord had so willed, they would not have done it; so leave them alone with their fabrications. (Tafsir Qurtubi)

(338) And the Word of your Lord has been fulfilled in truth and in justice. None can change His Words. And He is the All-Hearer, the All-Knower.

(339) And if you obey most of those on the earth, they will mislead you far away from Allah's Path. They follow nothing but conjectures, and they do nothing but lie.

(340) Leave (O mankind, all kinds of) sin, open and secret. Verily, those who commit sin will get due recompense for that which they used to commit.