Xu Collection, Lower Volume
Radical: Food (shí)
Character: Zhan
Kangxi strokes: 18
Page 1423, Entry 05
Tang Rhymes (Tangyun), Rhyme Compendium (Yunhui), and Correct Rhymes (Zhengyun) state the pronunciation is zhan (level tone).
Jade Chapters (Yupian) states it is the same as zhan.
Xunzi, On Rites (Lulun pian): Thick porridge made from grain and meat.
Also, Dictionary Supplement (Zibubu) records a variant form.
Book of Rites (Liji), Pattern of the Family (Neize): Rice made into a thin gruel (yi).
Explication of Texts (Shiwen): Yi is read as a variant form, pronounced yi (rising tone).
Also, Collected Rhymes (Jiyun) and Rhyme Compendium (Yunhui) state the pronunciation is jian (level tone).
Also, Collected Rhymes (Jiyun) states the pronunciation is zhan (rising tone).
The meanings are the same.
Textual Research: Book of Rites (Liji), Pattern of the Family (Neize): Rice made into a thin gruel (yi). Note: Yi is read as a variant form. I respectfully note that this is language from the Explication of Texts, and the note has been corrected to refer to the Explication of Texts.