It was narrated that Ibn 'Umar said:
"The Messenger of Allah (ﷺ) delivered a khutbah and said: 'When any one of you wants to go to Jumu'ah, let him perform ghusl.'"
App reference: Book 14, Hadith 42
English reference: Vol. 2, Book 14, Hadith 1406
Arabic reference: Book 14, Hadith 1416