Samyuktagama (Sanskrit fragments) 684.16

684.16

「復次，如來諸漏已盡，無漏心解脫、慧解脫，現法自知身作證：『我生已盡，梵行已立，所作已作，自知不受後有。』是名第十如來力。若此力成就，如來、應、等正覺得先佛最勝處智，能轉梵輪，於大眾中師子吼而吼。

“Furthermore, the Tathāgata has ended the contaminants. Without contaminants, his mind is liberated, and his wisdom is liberated. In the present life, he knows and has personally realized, ‘My births have been ended, the religious practice has been established, and the task has been accomplished. I myself know I won’t be subject to a later existence.’ This is called the Tathāgata’s tenth power. If someone accomplished this power, it would be the Tathāgata, Arhat, and Completely Awakened One. Before becoming a buddha, he attained the highest abode of knowledge. He turned the Brahma wheel and roared the lion’s roar amid his great assembly.