Jami` at-Tirmidhi 492
جامع الترمذي#492Sahihحَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ سَالِمٍ، عَنْ أَبِيهِ، أَنَّهُ سَمِعَ النَّبِيَّ صلى الله عليه وسلم 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 .
Salim narrated from his father, from his grandfather, that he heard :the Prophet saying: "Whoever comes on Friday, then let him perform Ghusl
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 4:5