The word(s) "doctrine" appears 5 time(s) in 5 verse(s) in Quran in Mohsin Khan translation.

(1) "But if you turn away [from accepting my doctrine of Islamic Monotheism, i.e. to worship none but Allah], then no reward have I asked of you; my reward is only from Allah, and I have been commanded to be of the Muslims (i.e. those who submit to Allah's Will)."

(2) But if they answer you not (i.e. do not bring the Book nor believe in your doctrine of Islamic Monotheism), then know that they only follow their own lusts. And who is more astray than one who follows his own lusts, without guidance from Allah? Verily Allah guides not the people who are Zalimun (wrong-doers, disobedient to Allah, and polytheists).

(3) And who does more wrong than he who invents a lie against Allah or denies the truth (Muhammad صلى الله عليه وسلم and his doctrine of Islamic Monotheism and this Qur'an), when it comes to him? Is there not a dwelling in Hell for disbelievers (in the Oneness of Allah and in His Messenger Muhammad صلى الله عليه وسلم)?

(4) Allah sets forth an example for those who disbelieve: the wife of Nuh (Noah) and the wife of Lut (Lot). They were under two of our righteous slaves, but they both betrayed them (their husbands by rejecting their doctrine). So they [Nuh (Noah) and Lut (Lot) عليهما السلام] availed them (their respective wives) not against Allah and it was said: "Enter the Fire along with those who enter!"

(5) He said: "O my Lord! Verily, I have called to my people night and day (i.e. secretly and openly to accept the doctrine of Islamic Monotheism),