The Blessed Buddha once said:
Bhikkhus, there are these three
supramundane abilities. What three?
1: The ability of coming to
know, what one did not yet know...
2: The ability of gradually achieving
the highest & final wisdom...
3: The ability of one, who
dwells in the highest and final wisdom...
These are the three supreme supramundane abilities. (aññā-indriya)

For Details on the
general Abilities (indriya) & Final Knowledge (aññā) see:
http://What-Buddha-Said.net/drops/III/Five_Abilities_Summary.htm
http://What-Buddha-Said.net/library/DPPN/wtb/a/annaa.htm
http://What-Buddha-Said.net/drops/III/Final_Knowledge.htm
http://What-Buddha-Said.net/drops/II/Final_Knowledge.htm
http://What-Buddha-Said.net/drops/Final_Freedom.htm

Source of reference
(edited extract):
The Grouped Sayings of the Buddha.
Samyutta Nikāya.
Book [V:
204] 48 The Mental Abilities: 23 Final Wisdom..

Final Wisdom!