The word(s) "disobey" appears 54 time(s) in 53 verse(s) in Quran in Mohsin Khan translation.

(21) Such were 'Ad (people). They rejected the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of their Lord and disobeyed His Messengers, and followed the command of every proud obstinate (oppressor of the truth, from their leaders).

(22) He said: "O my people! Tell me, if I have a clear proof from my Lord, and there has come to me a Mercy (Prophethood) from Him, who then can help me against Allah, if I were to disobey Him? Then you increase me not but in loss.

(23) And He gave you of all that you asked for, and if you count the Blessings of Allah, never will you be able to count them. Verily, man is indeed an extreme wrong-doer, a disbeliever (an extreme ingrate who denies Allah's Blessings by disbelief, and by worshipping others besides Allah, and by disobeying Allah and His Prophet Muhammad صلى الله عليه و سلم).

(24) "O my Lord! They have indeed led astray many among mankind. But whoso follows me, he verily is of me. And whoso disobeys me, still You are indeed Oft-Forgiving, Most Merciful.

(25) Then, on the Day of Resurrection, He will disgrace them and will say: "Where are My (so called) partners concerning whom you used to disagree and dispute (with the believers, by defying and disobeying Allah)?" Those who have been given the knowledge (about the Torment of Allah for the disbelievers) will say: "Verily! Disgrace and misery this Day are upon the disbelievers.

(26) Those who disbelieved and hinder (men) from the Path of Allah, for them We will add torment to the torment because they used to spread corruption [by disobeying Allah themselves, as well as ordering others (mankind) to do so].

(27) And be not like her who undoes the thread which she has spun, after it has become strong, by taking your oaths as a means of deception among yourselves, lest a nation should be more numerous than another nation. Allah only tests you by this [i.e who obeys Allah and fulfils Allah's Covenant and who disobeys Allah and breaks Allah's Covenant]. And on the Day of Resurrection, He will certainly make clear to you that wherein you used to differ [i.e. a believer confesses and believes in the Oneness of Allah and in the Prophethood of Prophet Muhammad صلى الله عليه و سلم which the disbeliever denies and that is their difference amongst them in the life of this world] .

(28) And (remember) when We said to the angels: "Prostrate yourselves unto Adam." So they prostrated themselves except Iblis (Satan). He was one of the jinn; he disobeyed the Command of his Lord. Will you then take him (Iblis) and his offspring as protectors and helpers rather than Me while they are enemies to you? What an evil is the exchange for the Zalimun (polytheists, and wrong-doers).

(29) Musa (Moses) said: "If Allah wills, you will find me patient, and I will not disobey you in aught."

(30) "That you followed me not (according to my advice to you)? Have you then disobeyed my order?"