Do the words, Dharmakaya, Nirmanakaya or Samboghakaya appear in any Teravada Buddhist Scriptures? I read some articles and saw some references to the words , Dharmakaya, Samboghakaya and Nirmanakaya used by Buddha , as mentioned in the Theravada scriptures , at least a few times during His Lifetime. Has anyone come across this , too?
The Trikaya concept is a Mahayana concept although the origin to the term Dharmakaya could be found in the Pali Canon at SN 22.87:


  Enough, Vakkali! What is there to see in this vile body? He who sees Dhamma, Vakkali, sees me; he who sees me sees Dhamma. Truly seeing Dhamma, one sees me; seeing me one sees Dhamma."