It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "When any person comes for Jumu'ah, he should come after performing ghusl (ritual bath)."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5210
Hadith Gradingحکم دارالسلام:إسناده صحيح ، م : 844 .