Could you reference this?
Al Hisham ibn ‘Urwah said:
“I have not seen anyone who was more knowledgeable in halal, haram, knowledge, poetry and medicine than ‘Aaishah, the mother of the believers (radiyallahu ‘anha)”
Answer
Imam Hakim (rahimahullah) has recorded this narration as the statement of ‘Urwah ibn Zubayr (rahimahullah) and not as the statement of Hisham ibn ‘Urwah (rahimahullah).
‘Urwah ibn Zubayr (rahimahullah) said: “I have not seen anyone who was more knowledgeable in halal, haram, knowledge, poetry and medicine than ‘Aaishah, the mother of the believers (radiyallahu ‘anha)”
(Mustadrak Hakim, vol. 4 pg. 11)
Also see here.
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar