The word(s) "heir" appears 1616 time(s) in 1106 verse(s) in Quran in Mohsin Khan translation.

(741) Call them (adopted sons) by (the names of) their fathers: that is more just with Allah. But if you know not their father's (names, call them) your brothers in faith and Mawalikum (your freed slaves). And there is no sin on you concerning that in which you made a mistake , except in regard to what your hearts deliberately intend. And Allah is Ever Oft-Forgiving, Most Merciful.

(742) The Prophet is closer to the believers than their ownselves, and his wives are their (believers') mothers (as regards respect and marriage). And blood relations among each other have closer personal ties in the Decree of Allah (regarding inheritance) than (the brotherhood of) the believers and the Muhajirun (emigrants from Makkah), except that you do kindness to those brothers (when the Prophet صلى الله عليه وسلم joined them in brotherhood ties). This has been written in the (Allah's Book of Divine) Decrees - (Al-Lauh Al-Mahfuz)."

(743) And (remember) when We took from the Prophets their covenant, and from you (O Muhammad صلى الله عليه وسلم), and from Nuh (Noah), Ibrahim (Abraham), Musa (Moses), and 'Îsa (Jesus) son of Maryam (Mary). We took from them a strong covenant.

(744) That He may ask the truthful (Allah's Messengers and His Prophets) about their truth (i.e. the conveyance of Allah's Message that which they were charged with). And He has prepared for the disbelievers a painful torment (Hell-fire).

(745) And indeed they had already made a covenant with Allah not to turn their backs, and a covenant with Allah must be answered for.

(746) Allah already knows those among you who keep back (men) from fighting in Allah's Cause, and those who say to their brethren "Come here towards us," while they (themselves) come not to the battle except a little,

(747) Being miserly towards you (as regards help and aid in Allah's Cause). Then when fear comes, you will see them looking to you, their eyes revolving like (those of) one over whom hovers death; but when the fear departs, they will smite you with sharp tongues, miserly towards (spending anything in any) good (and only covetous of booty and wealth). Such have not believed. Therefore Allah makes their deeds fruitless and that is ever easy for Allah.

(748) And when the believers saw Al-Ahzab (the Confederates), they said: "This is what Allah and His Messenger (Muhammad صلى الله عليه وسلم) had promised us; and Allah and His Messenger (Muhammad صلى الله عليه وسلم) had spoken the truth. And it only added to their Faith and to their submissiveness (to Allah).

(749) Among the believers are men who have been true to their covenant with Allah [i.e. they have gone out for Jihad (holy fighting), and showed not their backs to the disbelievers]; of them some have fulfilled their obligations (i.e. have been martyred); and some of them are still waiting, but they have never changed [i.e. they never proved treacherous to their covenant which they concluded with Allah] in the least.

(750) That Allah may reward the men of truth for their truth (i.e. for their patience at the accomplishment of that which they covenanted with Allah), and punish the hypocrites, if He wills, or accept their repentance by turning to them (in Mercy). Verily, Allah is Oft-Forgiving, Most Merciful.