(12) باب هَلْ عَلَى مَنْ لَمْ يَشْهَدِ الْجُمُعَةَ غُسْلٌ مِنَ النِّسَاءِ وَالصِّبْيَانِ وَغَيْرِهِمْ
Narrated Abu Huraira through different narrators that the Prophet (ﷺ) said, "It is Allah's right on every Muslim that he should take a bath (at least) once in seven days."
Reference: Sahih al-Bukhari 898
In-book reference: Book 11, Hadith 22
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 13, Hadith 21