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. (RU)
Reference (RU): Sahih Muslim 844 a (RU)
In-book reference (RU): Book 7, Hadith 1 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 1832 (RU)