The word(s) "obey" appears 89 time(s) in 80 verse(s) in Quran in Abdullah Yusuf Ali translation.

(71) O Prophet! When believing women come to thee to take the oath of fealty to thee, that they will not associate in worship any other thing whatever with Allah, that they will not steal, that they will not commit adultery (or fornication), that they will not kill their children, that they will not utter slander, intentionally forging falsehood, and that they will not disobey thee in any just matter,- then do thou receive their fealty, and pray to Allah for the forgiveness (of their sins): for Allah is Oft-Forgiving, Most Merciful.

(72) So obey Allah, and obey His Messenger: but if ye turn back, the duty of Our Messenger is but to proclaim (the Message) clearly and openly.

(73) So fear Allah as much as ye can; listen and obey and spend in charity for the benefit of your own soul and those saved from the covetousness of their own souls,- they are the ones that achieve prosperity.

(74) And disobeyed (each) the messenger of their Lord; so He punished them with an abundant Penalty.

(75) "That ye should worship Allah, fear Him and obey me:

(76) Noah said: "O my Lord! They have disobeyed me, but they follow (men) whose wealth and children give them no increase but only Loss.

(77) Say: "No one can deliver me from Allah (If I were to disobey Him), nor should I find refuge except in Him,

(78) "Unless I proclaim what I receive from Allah and His Messages: for any that disobey Allah and His Messenger,- for them is Hell: they shall dwell therein for ever."

(79) But Pharaoh disobeyed the messenger; so We seized him with a heavy Punishment.

(80) But (Pharaoh) rejected it and disobeyed (guidance);