Matthew 19:24 is the parallel version of this exact saying about a camel going through the eye of a needle.

Matthew 19:25 records the disciples' astonished question — 'who then can be saved?' — the same reaction as in Mark after this saying.

Luke 18:25 records the identical saying about a camel going through a needle's eye — a direct parallel passage.

Jeremiah 13:23 uses the impossibility of a leopard changing its spots — similar hyperbole to the camel and needle to illustrate human helplessness.