Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tirmidhi:492Aḥmad b. Manīʿ > Sufyān b. ʿUyaynah > al-Zuhrī > Sālim from his father

the Prophet saying: "Whoever comes on Friday, then let him perform Ghusl."  

الترمذي:٤٩٢حَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنْ أَبِيهِ

أَنَّهُ سَمِعَ النَّبِيَّ ﷺ يَقُولُ مَنْ أَتَى الْجُمُعَةَ فَلْيَغْتَسِلْ قَالَ وَفِي الْبَابِ عَنْ عُمَرَ وَأَبِي سَعِيدٍ وَجَابِرٍ وَالْبَرَاءِ وَعَائِشَةَ وَأَبِي الدَّرْدَاءِ  

قَالَ أَبُو عِيسَى حَدِيثُ ابْنِ عُمَرَ حَدِيثٌ حَسَنٌ صَحِيحٌ