(71) باب إِذَا كَانُوا ثَلاَثَةً كَيْفَ يَقُومُونَ
Narrated Abdullah ibn Mas'ud:
Alqamah and al-Aswad sought permission from Abdullah (ibn Mas'ud) for admission, and we remained sitting at his door for a long time. A slave-girl came out and gave them permission (to enter). He (Ibn Mas'ud) then got up and prayed (standing) between me (al-Aswad) and him (Alqamah). He then said: I witnessed the Messenger of Allah (ﷺ) doing similarly.
Reference: Sunan Abi Dawud 613
In-book reference: Book 2, Hadith 223
English translation: Book 2, Hadith 613