The five messengers of Mañjuśrī, each bearing one of his 五智 five expressions of wisdom; they are 髻設尼; 優波髻設尼; 質多羅; 地慧, and 請召.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

（名數）經云與願金剛使。大日經一曰：「左邊畫五種與願金剛使。」疏五曰：「文殊五使者：一名髻設尼，二名優波髻設尼，三名質多羅，四名地慧，五名請召。於妙吉祥左右次第列之，蓋各持文殊一智也。髻設尼是髮端嚴義，鄔波其亞者，文殊以五髻徵表五智，故此使者亦以美髮為名，質多羅是雜色義。」是五髻文殊之使者也。
 

丁福保《佛學大辭典》