首楞嚴義疏注經 4.516

4.516

「由動、靜等二種相擊，於妙圓中粘湛發聽，聽精映聲，卷聲成根，根元目為清淨四大，因名耳體。如新卷葉，浮根四塵流逸奔聲。」

"Due to the two kinds of mutual impact, such as movement and stillness, within the wondrously perfect [nature] it adheres to the still clarity and generates hearing. The essence of hearing reflects upon sound, coiling sound to become a faculty. The root of the faculty is designated as the pure four great elements, and is therefore named the body of the ear. Resembling newly curled leaves, the four dusts of the floating faculty drift out and rush after sound."