The fifteenth section of the Saṃyuttanikāya.
It contains a collection of sayings on the incalculable beginning of saṃsāra (S.ii.178 ﬀ).
On the fourth day of Mahinda’s visit to Sri Lanka he taught this Saṃyutta in the Nandanavana in Anurādhapura (Mhv.xv.186; Sp.i.81; Mbv.114).
The Pātheyyaka monks became Arahants after listening to the Buddha teaching the Anamataggāni. DhA.ii.32.