Abu Hurairah (May Allah be pleased with him) said:
I heard the Messenger of Allah (ﷺ) as saying: "None of you should observe fast on Friday except that he should observe fast either one day before it or one day after it."[Al-Bukhari and Muslim]. (DE)
App reference (DE): Book 18, Hadith 251 (DE)
Arabic/English book reference (DE): Book 18, Hadith 1761 (DE)