Sunan Abu Dawud
1280
Daif+2

Narrated Aisha, Ummul Mu'minin: Dhakwan, the client of Aisha, reported on the authority of Aisha: The Messenger of Allah (ﷺ) used to pray after the afternoon prayer but prohibited others from it; and he would fast continuously but forbid others to do so

DaifAl-Albani
DaifMuhammad Muhyi Al-Din Abdul Hamid