The word(s) "slave" appears 166 time(s) in 153 verse(s) in Quran in Mohsin Khan translation.

(61) And they say: "The Most Gracious (Allah) has begotten a son (or children)." Glory to Him! They [whom they call children of Allah i.e. the angels, 'Îsa (Jesus) - son of Maryam (Mary), 'Uzair (Ezra)], are but honoured slaves.

(62) And indeed We have written in Az-Zabur [i.e. all the revealed Holy Books - the Taurat (Torah), the Injeel (Gospel), the Psalms, the Qur'an,] after (We have already written in) Al-Lauh Al-Mahfuz (the Book that is in the heaven with Allah), that My righteous slaves shall inherit the land (i.e. the land of Paradise).

(63) That is because of what your hands have sent forth, and verily, Allah is not unjust to (His) slaves.

(64) Except from their wives or (the slaves) that their right hands possess, - for then, they are free from blame;

(65) Verily there was a party of My slaves, who used to say: "Our Lord! We believe, so forgive us, and have mercy on us, for You are the Best of all who show mercy!"

(66) And tell the believing women to lower their gaze (from looking at forbidden things), and protect their private parts (from illegal sexual acts) and not to show off their adornment except only that which is apparent (like both eyes for necessity to see the way, or outer palms of hands or one eye or dress like veil, gloves, head-cover, apron, etc.), and to draw their veils all over Juyubihinna (i.e. their bodies, faces, necks and bosoms) and not to reveal their adornment except to their husbands, or their fathers, or their husband's fathers, or their sons, or their husband's sons, or their brothers or their brother's sons, or their sister's sons, or their (Muslim) women (i.e. their sisters in Islam), or the (female) slaves whom their right hands possess, or old male servants who lack vigour, or small children who have no sense of feminine sex. And let them not stamp their feet so as to reveal what they hide of their adornment. And all of you beg Allah to forgive you all, O believers, that you may be successful.

(67) And marry those among you who are single (i.e. a man who has no wife and the woman who has no husband) and (also marry) the Salihun (pious, fit and capable ones) of your (male) slaves and maid-servants (female slaves). If they be poor, Allah will enrich them out of His Bounty. And Allah is All-Sufficient for His creatures' needs, All-Knowing (about the state of the people).

(68) And let those who find not the financial means for marriage keep themselves chaste, until Allah enriches them of His Bounty. And such of your slaves as seek a writing (of emancipation), give them such writing, if you find that there is good and honesty in them. And give them something (yourselves) out of the wealth of Allah which He has bestowed upon you. And force not your maids to prostitution, if they desire chastity, in order that you may make a gain in the (perishable) goods of this worldly life. But if anyone compels them (to prostitution), then after such compulsion, Allah is Oft-Forgiving, Most Merciful (to those women, i.e. He will forgive them because they have been forced to do this evil act unwillingly).

(69) O you who believe! Let your slaves and slave-girls, and those among you who have not come to the age of puberty ask your permission (before they come to your presence) on three occasions: before Fajr (morning) Salat (prayer), and while you put off your clothes for the noonday (rest), and after the 'Isha' (late-night) Salat (prayer). (These) three times are of privacy for you; other than these times there is no sin on you or on them to move about, attending to each other. Thus Allah makes clear the Ayat (the Verses of this Qur'an, showing proofs for the legal aspects of permission for visits) to you. And Allah is All-Knowing, All-Wise.

(70) Blessed be He Who sent down the criterion (of right and wrong, i.e. this Qur'an) to His slave (Muhammad صلى الله عليه وسلم) that he may be a warner to the 'Alamin (mankind and jinn).