增壹阿含經 24.5.p59

24.5.p59

The Bhagavān then went to the cave and prepared a seat for the night. Sitting down cross-legged with upright body and mind, he fixed his attention to what was in front of him. The poisonous serpent saw the Bhagavān sitting there and spat flaming venom at him. The Bhagavān at that moment had entered a concentration of kindness. He emerged from that concentration of kindness and entered a concentration of blazing light. The serpent’s fire and the Buddha’s light met at the same time.