Luke 11:38

The Pharisee noticed, to his astonishment, that Jesus omitted the ceremonial washing before breakfast.

Matthew 15:2-3

"How is it that your disciples break the traditions of our ancestors? For they do not wash their hands when they eat food."

Mark 7:2-5

They had noticed that some of his disciples ate their food with their hands 'defiled,' by which they meant unwashed.

John 3:25

Now a discussion arose between some of John's disciples and a Jew on the subject of 'purification;'

Treasury of Scripture Knowledge

Summary

And when the Pharisee saw it, he marvelled that he had not first washed before dinner.

Bible References

He marvelled

Matthew 15:2
"How is it that your disciples break the traditions of our ancestors? For they do not wash their hands when they eat food."
Mark 7:2
They had noticed that some of his disciples ate their food with their hands 'defiled,' by which they meant unwashed.
John 3:25
Now a discussion arose between some of John's disciples and a Jew on the subject of 'purification;'