Friday is the best of days; it is the weekly festival (eid) of the Muslims, on which they gather to do good and remember Allah (dhikr). Hence the Prophet (blessings and peace of Allah be upon him) enjoined people to do ghusl on that day. In this hadith, the Tabi‘i Tawus ibn Kaysan narrates that Ibn ‘Abbas (may Allah be pleased with him) mentioned what the Prophet (blessings and peace of Allah be upon him) said with regard to doing ghusl on Friday. The command in this instance is addressed to one who is not junub, for the purpose of cleaning and purifying himself, because the one who is junub is commanded to remove the janabah on Friday and otherwise. Tawus asked him: Did the Prophet (blessings and peace of Allah be upon him) enjoin putting on perfume, even if the perfume belongs to one’s wife? This is because perfume is one of the things that she uses to beautify herself for her husband, so it is most likely that perfume would be in the possession of women, rather than men. What is meant by perfume is anything that is applied to the body to give a good fragrance. Ibn ‘Abbas (may Allah be pleased with him) responded by saying that he had no knowledge of what the Prophet (blessings and peace of Allah be upon him) had said with regard to putting on perfume on Friday, or whether this action was recommended or was enjoined like ghusl. The fact that Ibn ‘Abbas (may Allah be pleased with him) had not heard anything about putting on perfume on Friday does not necessarily mean that the Prophet (blessings and peace of Allah be upon him) did not say it.Ibn ‘Abbas (may Allah be pleased with him) narrated what he heard. But others heard it. In Sahih al-Bukhari it is narrated from Abu Sa‘id al-Khudri (may Allah be pleased with him) that the Prophet (blessings and peace of Allah be upon him) said concerning the etiquette of Jumu‘ah: “…and put on perfume if it is available.” The command to put on perfume depends on one’s ability to do it, for not everyone owns perfume or keeps it at home. This hadith highlights an important point of etiquette for the scholar and mufti, which is that they should say “I do not know” with regard to anything of which they have no knowledge. It also indicates that we are urged to do ghusl on Friday..