佛說觀佛三昧海經 1.8

1.8

At that time, the royal father, Mahānāman, and three hundred million Śākyas entered the Buddha's vihāra. As they entered, they saw that the Buddha's vihāra was like a mountain of crystal. They paid homage to the Buddha; before they even raised their heads, they saw before the Buddha a great lotus flower formed of manifold jewels, and atop the lotus flower was a great dais of light. Having seen it, the royal father gave rise to joy in his heart, marvelling at what had never been before. He circumambulated the Buddha three times and sat back to one side.