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

(551) "And as for the wall, it belonged to two orphan boys in the town; and there was under it a treasure belonging to them; and their father was a righteous man, and your Lord intended that they should attain their age of full strength and take out their treasure as a mercy from your Lord. And I did them not of my own accord. That is the interpretation of those (things) over which you could not hold patience."

(552) Say (O Muhammad صلى الله عليه وسلم): "Shall We tell you the greatest losers in respect of (their) deeds?

(553) "Those whose efforts have been wasted in this life while they thought that they were acquiring good by their deeds.

(554) "They are those who deny the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of their Lord and the Meeting with Him (in the Hereafter). So their works are in vain, and on the Day of Resurrection, We shall assign no weight for them.

(555) "That shall be their recompense, Hell; because they disbelieved and took My Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) and My Messengers by way of jest and mockery.

(556) "Verily those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous deeds, shall have the Gardens of Al-Firdaus (Paradise) for their entertainment.

(557) Kaf-Ha-Ya-'Ain-Sad. [These letters are one of the miracles of the Qur'an, and none but Allah (Alone) knows their meanings].

(558) "And verily I fear my relatives after me, and my wife is barren. So give me from Yourself an heir.

(559) Then, there has succeeded them a posterity who have given up As-Salat (the prayers) [i.e. made their Salat (prayers) to be lost, either by not offering them or by not offering them perfectly or by not offering them in their proper fixed times] and have followed lusts. So they will be thrown in Hell.

(560) They shall not hear therein (in Paradise) any Laghw (dirty, false, evil vain talk), but only Salam (salutations of peace). And they will have therein their sustenance, morning and afternoon. [See (V.40:55)].