The word(s) "necks" appears 8 time(s) in 8 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And let not those deem, who are niggardly in giving away that which Allah has granted them out of His grace, that it is good for them; nay, it is worse for them; they shall have that whereof they were niggardly made to cleave to their necks on the resurrection day; and Allah's is the heritage of the heavens and the earth; and Allah is aware of what you do.

(2) And if you would wonder, then wondrous is their saying: What! when we are dust, shall we then certainly be in a new creation? These are they who disbelieve in their Lord, and these have chains on their necks, and they are the inmates of the fire; in it they shall abide.

(3) If We please, We should send down upon them a sign from the heaven so that their necks should stoop to it.

(4) And those who were deemed weak shall say to those who were proud. Nay, (it was) planning by night and day when you told us to disbelieve in Allah and to set up likes with Him. And they shall conceal regret when they shall see the punishment; and We will put shackles on the necks of those who disbelieved; they shall not be requited but what they did.

(5) Surely We have placed chains on their necks, and these reach up to their chins, so they have their heads raised aloft.

(6) Bring them back to me; so he began to slash (their) legs and necks.

(7) When the fetters and the chains shall be on their necks; they shall be dragged

(8) So when you meet in battle those who disbelieve, then smite the necks until when you have overcome them, then make (them) prisoners, and afterwards either set them free as a favor or let them ransom (themselves) until the war terminates. That (shall be so); and if Allah had pleased He would certainly have exacted what is due from them, but that He may try some of you by means of others; and (as for) those who are slain in the way of Allah, He will by no means allow their deeds to perish.