陀羅尼雜集 9.73

9.73

The Buddha of the eastern direction is named Tathāgata, Arhat, Samyaksambuddha Equal Practice; if a person travels east, take refuge in that Buddha. The same applies to the south, west, north, and the four intermediate directions. When about to sleep, call upon the Buddha of the zenith; upon rising, call upon the Buddha of the nadir.