(1) باب التطبيق
It was narrated that 'Alqamah and Al-Aswad said:
"We prayed with Abdullah bin Mas'ud in his house. He stood between us and we placed our hands on our knees, but he took them off and made us interlace our fingers, and said: "I saw the Messenger of Allah (ﷺ) do that.'" (JA)
Reference (JA): Sunan an-Nasa'i 1030 (JA)
In-book reference (JA): Book 12, Hadith 2 (JA)
English translation (JA): Vol. 2, Book 12, Hadith 1031 (JA)