The Long Āgama Sūtra 17.32

17.32

爾時，阿難在世尊後執扇扇佛，即偏露右肩，右膝著地，叉手白佛言：「甚奇！世尊！此法清淨，微妙第一。當云何名？云何奉持？」

Ānanda was at the time standing behind the Bhagavān holding a fan. He adjusted his robes to bare his right shoulder and knelt on his right knee. With his palms together, he said to the Buddha, “Amazing, Bhagavān! This teaching is pure, sublime, and supreme! What shall be its name? How shall we uphold it?”