jiǔ fèng yán 
jiǔ fèng yán The ninth day of the ninth noon, a festival on the lunar calendar Send Yan Feng doctor

shīrén: Du Fu
  jiǔ yìng chóu jīng shí mào xiǎn jiān mián chí hàn jié chū shān
   xiǎo xiāng láo nènzhòng yán bānyáo zhī 'ān huí shǒu bái yún jiān