(70) باب الرَّجُلَيْنِ يَؤُمُّ أَحَدُهُمَا صَاحِبَهُ كَيْفَ يَقُومَانِ
Anas said:
The Messenger of Allah (ﷺ) entered upon Umm Haram. The people (in her house) brought some cooking oil dates to him. He said; Put it (dates) back in its container and return it (cooking oil) to its bag, because I am keeping fast. He then stood and led us in prayer two Rak'ahs of supererogatory prayer. Then Umm Sulaim and Umm Haram stood behind us (i.e., the men). Thabit (the narrator) said: I understand that Anas said; he (the prophet) made me stand on his right side.
Reference: Sunan Abi Dawud 608
In-book reference: Book 2, Hadith 218
English translation: Book 2, Hadith 608