《 Xīyóujì 》 lǐ Tángsēng yǒu yí jiàn jǐn lán jiāshā.
In Journey to the West, Tang Sanzang has a brocade kasaya.
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history
Loanword from Sanskrit kāṣāya (literally ‘ochre/dyed color’) - the robe was traditionally made from discarded cloth dyed a muted earth tone to signify renunciation. Both characters use the 衣 (clothing) radical.