Dutiyādipācīnaninnasuttacatukka - translated by Bhikkhu Bodhi
“Bhikkhus, just as the river Yamuna … sn.v.39 … the river Aciravati … the river Sarabhū… the river Mahī … whatever great rivers there are—that is, the Ganges, the Yamuna, the Aciravati, the Sarabhū, the Mahī—all slant, slope, and incline towards the east, so too a bhikkhu who develops and cultivates the Noble Eightfold Path slants, slopes, and inclines towards Nibbāna.”