Assutavā Sutta
Seeing thus, the instructed disciple of the noble ones grows disenchanted with form, disenchanted with feeling, disenchanted with perception, disenchanted with fabrications, disenchanted with consciousness. Disenchanted, he becomes dispassionate. Through dispassion, he is fully released. With full release, there is the knowledge, 'Fully released.'
http://www.accesstoinsight.org/tipitaka/sn/sn12/sn12.061.niza.html
Seeing thus, monks, a noble disciple, learned in spiritual knowledge, grows weary and turns away from material form; grows weary and turns away from feelings; grows weary and turns away from perceptions; grows weary and turns away from formative functions; grows weary and turns away from sensory consciousness. Having grown weary and having turned away, he detaches; from detachment, he is released; from being released, there is the knowledge: ‘Released.’
http://www.accesstoinsight.org/tipitaka/sn/sn12/sn12.061.than.html