āyatana sutta
Āyatana Sutta:1.āyatana Sutta.-Once when the Buddha was staying in the Kūtāgarasālā in Vesāli,he preached to the monks a sermon on the six spheres of contact (salāyatana).The monks listened with rapt attention until Māra,making a terrible din,disturbed their peace of mind.The Buddha admonished the monks not to be led away by Māra,and the latter,discomfited,disappeared (S.i.112).
2.āyatana Sutta.-The four Ariyan truths are concerned with the six personal spheres of sense.Effort should be made to realise this.S.v.426.