(9) باب وَضْعِ الْيَمِينِ عَلَى الشِّمَالِ فِي الصَّلاَةِ
It was narrated that Musa bin Umair Al-Anbari and Qais bin Sulaim Al-Anbari said:
"Alqamah bin Wa'il told us that his father said: "I saw the Messenger of Allah (ﷺ), when he was standing in prayer, holding his left hand with his right.'"
Reference: Sunan an-Nasa'i 887
In-book reference: Book 11, Hadith 12
English translation: Vol. 2, Book 11, Hadith 888