مَنْ أَتَى الْجُمُعَةَ فَلْيَغْتَسِلْ
Translation: Whoever comes to the Friday prayer should bathe.
غُسْلُ الْجُمُعَةِ وَاجِبٌ عَلَى كُلِّ مُحْتَلِمٍ
Translation: Friday ghusl is wajib for every mature person.
Advocates of obligation emphasize the imperative and the word wajib in these reports.