The word(s) "disbelieve" appears 631 time(s) in 561 verse(s) in Quran in Mohsin Khan translation.

(41) Say (O Muhammad صلى الله عليه وسلم): "Obey Allah and the Messenger (Muhammad صلى الله عليه وسلم)." But if they turn away, then Allah does not like the disbelievers .

(42) And they (disbelievers) plotted to kill 'Îsa [(Jesus) عليه السلام], and Allah plotted too. And Allah is the Best of those who plot.

(43) And (remember) when Allah said: "O 'Îsa (Jesus)! I will take you and raise you to Myself and clear you [of the forged statement that 'Îsa (Jesus) is Allah's son] of those who disbelieve, and I will make those who follow you (Monotheists, who worship none but Allah) superior to those who disbelieve [in the Oneness of Allah, or disbelieve in some of His Messengers, e.g. Muhammad صلى الله عليه وسلم, 'Îsa (Jesus), Musa (Moses), etc., or in His Holy Books, e.g. the Taurat (Torah), the Injeel (Gospel), the Qur'an] till the Day of Resurrection . Then you will return to Me and I will judge between you in the matters in which you used to dispute."

(44) "As to those who disbelieve, I will punish them with a severe torment in this world and in the Hereafter, and they will have no helpers."

(45) O people of the Scripture! (Jews and Christians): "Why do you disbelieve in the Ayat of Allah, [the Verses about Prophet Muhammad صلى الله عليه وسلم present in the Taurat (Torah) and the Injeel (Gospel)] while you (yourselves) bear witness (to their truth)."

(46) Nor would he order you to take angels and Prophets for lords (gods) . Would he order you to disbelieve after you have submitted to Allah's Will? (Tafsir At-Tabari).

(47) How shall Allah guide a people who disbelieved after their belief and after they bore witness that the Messenger (Muhammad صلى الله عليه وسلم) is true and after clear proofs had come unto them? And Allah guides not the people who are Zalimun (polytheists and wrong-doers).

(48) Verily, those who disbelieved after their Belief and then went on increasing in their disbelief (i.e. disbelief in the Qur'an and in Prophet Muhammad صلى الله عليه وسلم) - never will their repentance be accepted [because they repent only by their tongues and not from their hearts]. And they are those who are astray.

(49) Verily, those who disbelieved, and died while they were disbelievers, the (whole) earth full of gold will not be accepted from anyone of them even if they offered it as a ransom . For them is a painful torment and they will have no helpers.

(50) Then after that, whosoever shall invent a lie against Allah, ... such shall indeed be the Zalimun (disbelievers).