Many great beings live in the ocean, such as leviathans, leviathan-gulpers, leviathan-gulper-gulpers, titans, dragons, and centaurs. In the ocean there are life-forms a hundred leagues long, or even two hundred, three hundred, four hundred, or five hundred leagues long. In the same way, great beings live in this teaching and training, and these are those beings. The stream-enterer and the one practicing to realize the fruit of stream-entry. The once-returner and the one practicing to realize the fruit of once-return. The non-returner and the one practicing to realize the fruit of non-return. The perfected one, and the one practicing for perfection. This is the eighth thing the mendicants love about this teaching and training.
Seeing these eight incredible and amazing things, Pahārāda, the mendicants love this teaching and training.”
Numbered Discourses 8.20 2. The Great Chapter Sabbath
At one time the Buddha was staying near Sāvatthī in the stilt longhouse of Migāra’s mother in the Eastern Monastery.
Now, at that time it was the sabbath, and the Buddha was sitting surrounded by the Saṅgha of monks. And then, as the night was getting late, in the first watch of the night, Venerable Ānanda rose from his seat, arranged his robe over one shoulder, raised his cupped palms toward the Buddha and said, “Sir, the night is getting late. It is the first watch of the night, and the Saṅgha of monks has been sitting long. Please, sir, may the Buddha recite the monastic code to the monks.”
But when he said this, the Buddha kept silent.