Abdullah is reported to have heard Allah's Messenger (ﷺ) as saying:
When any one of you intends to come for Jumu'a prayer, he should take a bath. (ES)
Reference (ES): Sahih Muslim 844 a (ES)
In-book reference (ES): Book 7, Hadith 1 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1832 (ES)