1. Vihāra Sutta. On the nine kinds of abiding (vihārā) in the four jhānas and in the spheres of infinite space, infinite consciousness, nothingness, neither perception nor non perception, and in the sphere where feeling and perception have ended. A.iv.410.
2. Vihāra Sutta. On the nine attainments of gradual abiding, similar to Sutta 1, the "abiding" being the same.
3. Vihāra Sutta. See the Padesavihāra Sutta.