Matthew 15:2
Why do your disciples transgress the tradition of the elders? for they wash not their hands when they eat bread.
Torrey's Topical Textbook—AKJV

Mark 7:3,4
For the Pharisees, and all the Jews, except they wash their hands oft, eat not, holding the tradition of the elders.
Torrey's Topical Textbook—AKJV