Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Kathā Sutta
Kathā Sutta:1.Kathā 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.Kathā Sutta.-On the five qualities which help a monk who practises ānāpānasati to attain to the immovable state (akuppam).These qualities include conversation which enlarges the mind.A.iii.120f.