Sufyan said: I heard al-Zuhri narrating from Sayyidah Aishah (may Allah be pleased with her), and he mentioned that hadith as mursal.
Sufyan said: It was said to al-Zuhri: Is it from Urwah? He said: No. That was as he was rising from the gathering and the iqamah for the prayer had been called. Sufyan said: I had heard Salih bin Abi al-Akhdar narrate it to us from al-Zuhri from Urwah, but al-Zuhri said: It is not from Urwah; so I thought that Salih's error came from the method of presentation ('ard). Abu Bakr al-Humaydi said: More than one person informed me from Ma'mar that he said about this hadith: If it were from the hadith of Urwah, I would not have forgotten it.
So these two, Ibn Jurayj and Sufyan bin Uyaynah, bear witness concerning al-Zuhri, and they are two upright witnesses, that he did not hear it from Urwah; so how can the connected version of whoever connected it be sound? Abu Isa al-Tirmidhi said: I asked Muhammad bin Isma'il al-Bukhari about this hadith, and he said: The hadith of al-Zuhri from Urwah from Aishah is not sound. Muhammad bin Yahya al-Dhuhli said the same, citing the account of Ibn Jurayj and Sufyan bin Uyaynah and the imams' narrating the hadith from al-Zuhri as mursal. It has also been narrated from Jarir bin Hazim from Yahya bin Sa'id from Amrah from Aishah; Jarir bin Hazim, though among the trustworthy, erred in it, and Ahmad bin Hanbal and Ali bin al-Madini judged him mistaken in that. The preserved version is from Yahya bin Sa'id from al-Zuhri from Aishah as mursal.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8367