From an old thread by RobertIK:
The Attahasalini (expositor) p32
"Which is the Khuddaka Nikaya? The whole of the Vinaya-pitaka, Abhidhamma pitaka and the fifteen divisions excluding the four nikayas" p35 "thus as rehearsed at the [first]council the Abhidhamma is a
Pitaka by Pitaka classification, khuddaka -nikaya by Nikaya classification, veyyakarana by part-classification and constitues two or three thousand units of text by classification of textual units"
"the talk of two Bhikkhus on the Abhidhamma, each asking and answering the other without faltering is in accord with the Dhamma"
Gulissaani Sutta (M 69)
> aaraññikenaavuso, bhikkhunaa abhidhamme abhivinaye yogo kara.niiyo
> "Friends, by a bhikkhu living the forest effort ought to be made in abhidhamma and abhivinaya"
"If without any intention of reviling the Vinaya one were to instigate another saying -'pray study the suttas or gathas or Abhidhamma first and afterwards learn the vinaya' there is no offense"
Vinaya iv 344http://groups.yahoo.com/group/dhammastu ... ssage/3350