This was said by the Buddha, the Perfected One: that is what I heard.

“Mendicants, there are these three kinds of purity. What three? Purity of body, speech, and mind. These are the three kinds of purity.”

The Buddha spoke this matter. On this it is said:

“Purity of body, purity of speech, 
and undefiled purity of heart. 
A pure person, blessed with purity, 
has given up everything, they say.”

This too is a matter that was spoken by the Blessed One: that is what I heard.