It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that Sayyiduna Umar (may Allah be pleased with him) said: "We were commanded to take a ritual bath (ghusl) on Friday."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ibn Awn (may Allah have mercy on him) except Azhar (may Allah have mercy on him), and Ahmad bin Muhammad bin Yahya (may Allah have mercy on him) is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الألف / 1755
Hadith Takhrij«أخرجه البزار فى «مسنده» برقم: 213، 218، وابن حجر فى «المطالب العالية» برقم: 686»