2-106 Abul Qasim Abdullah ibn Ahmad narrated that Ali ibn Abdul Aziz quoted Abu Na’eem, on the authority of Abdul Vahid ibn Aymain, on the authority of his father,

“I went to see Ayesha and asked her about the two units of prayers after the afternoon prayers. She said, ‘I swear by God who will take away his soul (i.e. the Prophet’s soul), the Prophet (MGB) never stopped saying those two units of prayers until he (MGB) went to meet the Honorable the Exalted God (perished), except for when he (MGB) was ill and could not say the prayers in a standing position. He said most of his prayers in a standing position.’ I asked her, ‘However, when Umar was in power, he admonished against these prayers.’ She said, ‘You are right. However, God’s Prophet (MGB) never said these prayers in the mosque, since he (MGB) feared that this might place a burden on his nation. Thus, he preferred to hide this from them.’”