觀無量壽佛經義疏 3.106

3.106

「『餘諸身相如觀世音，等無有異。』」謂面臂手等。二、行相，二：初、十方震動；二、動處莊嚴。初、十方震動。

"‘All the remaining marks of the body are like those of Avalokiteśvara, equal and without difference.’" This refers to the face, arms, hands, and so forth. Second, the characteristics of walking has two parts: first, the ten directions quaking; second, the places that quake being adorned. First, the ten directions quaking.