Matthew 19:24

Overview - Matthew 19
Christ heals the sick;
answers the Pharisees concerning divorcement;
10 shows when marriage is necessary;
13 receives little children;
16 instructs the young man how to attain eternal life;
20 and how to be perfect;
23 tells his disciples how hard it is for a rich man to enter into the kingdom of God;
27 and promises reward to those that forsake any thing to follow him.
Treasury of Scripture Knowledge

Matthew 19:24  (King James Version)
And again I say unto you, It is easier for a camel to go through the eye of a needle, than for a rich man to enter into the kingdom of God.

So in the Koran, "The impious, who in his arrogance shall accuse our doctrine of falsity, shall find the gates of heaven shut; nor shall he enter till a camel shall pass through the eye of a needle." It was a common mode of expression among the Jews to declare any thing that was rare or difficult.
26 ; 23:24 Jeremiah 13:23 ; Mark 10:24 Mark 10:25 ; Luke 18:25 ; John 5:44