1. Kathá Sutta. -A monk should not indulge in childish talk - e.g., about kings, robbers, ministers, etc. - but should speak only of Ill and things connected therewith. S.v.419f.
2. Kathá Sutta.-On the five qualities which help a monk who practises ánápánasati to attain to the immovable state (akuppam). These qualities include conversation which enlarges the mind. A.iii.120f.