It is narrated from Sayyidah Hafsah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "Going (to the prayer) on the day of Jumu'ah is obligatory upon every adult, and its ritual bath (ghusl) is like the ritual bath for janabah."
Sayyiduna Abu Rimthah (may Allah be pleased with him) narrates: I came to the Prophet (peace and blessings be upon him), and his (peace and blessings be upon him) hair reached his shoulders and was dyed with henna and katam (a plant used for dyeing hair).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19638