(2) باب الإِمْسَاكِ بِالرُّكَبِ فِي الرُّكُوعِ
It was narrated that 'Umar said:
"It is established for you to hold the knees, so hold the knees." (AR)
Reference (AR): Sunan an-Nasa'i 1034 (AR)
In-book reference (AR): Book 12, Hadith 6 (AR)
English translation (AR): Vol. 2, Book 12, Hadith 1035 (AR)