Reference: Hilyatul-Awliyaa. – Volume 3, Page 364
al-Jaami’ lil-Khateeb – Volume 2, Page 264
al-Hifth – Ahammiyyatuhu, ‘Ajaa.ibuhu, Tareeqatuhu, Asbaabuhu – Page 15
Muhammad ibn Muslim az-Zuhree (died 125AH) narrated:
There is nothing I have [ever] memorised and then [later] forgotten.