It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that the Messenger of Allah (peace and blessings be upon him) said: "Zaynab is the best of my daughters; she suffered (grief and hardship) for my sake." This reached Ali bin Husayn (may Allah have mercy on him), so he came to Urwah (may Allah have mercy on him) and said: "What is this hadith that has reached me from you, in which you belittle Sayyidah Fatimah (may Allah be pleased with her)?" Urwah (may Allah have mercy on him) replied: "I would never like to have such-and-such (wealth and goods) and belittle a right of Sayyidah Fatimah (may Allah be pleased with her) that truly belongs to her; however, after this (warning), you now have my pledge that I will never narrate this hadith."
Imam al-Tabarani (may Allah have mercy on him) said: "Only Yazid bin al-Had narrated this hadith from Umar bin Abdullah bin Urwah."
Hadith Referenceالمعجم الأوسط / باب العين / 4727
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 2828، 6926، 6927، والبزار فى «مسنده» برقم: 93 / 70، والطحاوي فى «شرح مشكل الآثار» برقم: 142، والطبراني فى «الكبير» برقم: 1051»