長阿含經 3.p76

3.p76

“‘Great Govinda then had a secluded abode built near his city and retired there to cultivate the four immeasurables during the four months of summer. Afterward, Brahmā didn’t come down to him. Govinda thought to himself, “I’ve heard ancient sayings from previous generations that when someone cultivates the four immeasurables during the four months of summer, Brahmā comes down and appears. It’s tranquil now, but there’s not even a momentary blur of him to be seen.”