Seven small balls of clay, as big as jujube kernels, are infinitely smaller than the earth. So with the Ariyan disciple - when he has won understanding, the dukkha that remains is infinitely smaller than that which he has destroyed. S.ii.135f.; repeated at S.v.462f.
The same as the above. S.ii.136.
Incalculable is samsāra. The number of parents a man has had would be greater than the number of balls, each the size of a kola (jujube) kernel, that could be made of the clay of the earth. S.ii.179.