Allah's Messenger (ﷺ) (p.b.u.h) said, "The taking of a bath on Friday is compulsory for every male (Muslim) who has attained the age of puberty."
Sahih al-Bukhari Book 11, Hadith 4
← Previous Hadith While `Umar bin Al-Khattab was standing and delivering the sermon on a Friday, one of the companions of the Prophet, who was one of the foremost Muhajirs (emigrants) came. `Umar said to him, "What is the time now?" He replied, "I was busy and could not go back to my house till I heard the Adhan. I did not perform more than the ablution." Thereupon `Umar said to him, "Did you perform only the ablution although you know that Allah's Messenger (ﷺ) (p.b.u.h) used to order us to take a bath (on Fridays)?"

Sahih al-Bukhari Book 11, Hadith 3 Next Hadith → I testify that Allah's Messenger (ﷺ) said, "The taking of a bath on Friday is compulsory for every male Muslim who has attained the age of puberty and (also) the cleaning of his teeth with Siwak, and the using of perfume if it is available." `Amr (a sub-narrator) said, "I confirm that the taking of a bath is compulsory, but as for the Siwak and the using of perfume, Allah knows better whether it is obligatory or not, but according to the Hadith it is as above.")

Sahih al-Bukhari Book 11, Hadith 5