'Abdullah bin 'Umar (RA) is reported to have said that The Messenger of Allah (ﷺ) (may peace be up on him) was standing on the pulpit when he said this: He who comes for Jumu'a he should take a bath.
'Abdullah (b. 'Umar) reported from his father that while he was addressing the people on Friday (sermon), a person, one of the Companions of the Messenger of Allah (ﷺ) , entered (the mosque). Umar said to him loudly: What is this hour (for attending the prayer)? He said: I was busy today and I did not return to my house when I heard the call (to Friday prayer), and I did no more but performed ablution only. Upon this Umar said: just ablution! You know that the Messenger of Allah (ﷺ) commanded (us) to take a bath (on Friday).
Abu Hurairah (RA) reported: Umar bin Khattab was delivering a sermon to the people on Friday when 'Uthman bin 'Affan came there. 'Umar hinting to him said: What would become of those persons who come after the call to prayer? Upon this 'Uthman said: Commander of the faithful, I did no more than this that after listening to the call, I performed ablution and came (to the mosque). 'Umar said: Just ablution! Did you not bear the Messenger of Allah (ﷺ) (my peace be upon him) say this: When any one of you comes for Jumu'a, he should take a bath.