增壹阿含經 17.1.p9

17.1.p9

At this time, after the Bhagavān had given this teaching, he left and returned to his abode of stillness. Then Venerable Rāhula thought, “How can one practice Ānāpānasmṛti to eliminate every notion of worry and sorrow?” At this time, Rāhula promptly left his seat and arose, to go to the place where the Bhagavān was. When he had arrived, he bowed his head at the feet of the Bhagavān, and then sat to one side. After sitting, in a moment of purity, he addressed the Bhagavān, saying: “How can one practice Ānāpānasmṛti, to eliminate every notion of worry and sorrow? How can one obtain the great fruit, and taste the sweet nectar?” The Bhagavān addressed Rāhula, saying: “Excellent, excellent, Rāhula! You are thus able to ‘roar the lion’s roar’ before the Tathāgata by asking, ‘How can one cultivate the practice of Ānāpānasmṛti, to eliminate every notion of worry and sorrow? How can one obtain the great fruit, and taste the sweet nectar of immortality?’ Now Rāhula, listen carefully. Listen carefully and consider well, because I will explain it to you.” Facing him, Venerable Rāhula replied, “Thusly, Bhagavān,” and waited for the Bhagavān’s instruction.