增壹阿含經 17.1.p15

17.1.p15

Moreover, he practiced the contemplation of suffering, and was aware of both the ending of suffering and the origin of suffering, truly aware of them as such. By means of developing this mindfulness, his mind attained liberation from the outflows of desires, and his mind attained liberation from the outflows of ignorance. After attaining these liberations, he naturally attained the liberation of wisdom, and birth and death then came to an end. Brahmacarya had been established, what was to be done, had been done, and there was no more coming back into existence — thus was his true awareness. It was at this time that Venerable Rāhula became an arhat.