أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنِي أَبُو دَاوُدَ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ أَبِي عَبْدِ الرَّحْمَنِ، عَنْ عُمَرَ، قَالَ سُنَّتْ لَكُمُ الرُّكَبُ فَأَمْسِكُوا بِالرُّكَبِ ‏.‏
Translation
It was narrated that 'Umar said

"It is established for you to hold the knees, so hold the knees."

Comment

The Book of The At-Tatbiq (Clasping One's Hands Together)

Sunan an-Nasa'i - Hadith Reference: Sunan an-Nasa'i 1034

Hadith Text

"It is established for you to hold the knees, so hold the knees."

Commentary on the Command

This narration establishes the sunnah of placing the hands firmly upon the knees during the ruku' (bowing) position of prayer. The emphatic repetition "so hold the knees" indicates the importance of this action and its established position in the prophetic practice.

Scholarly Explanation

The classical scholars explain that this hadith demonstrates the proper form of ruku', where the hands should grip the knees with fingers spread apart, ensuring stability and proper posture. This action helps maintain humility and physical alignment during prayer, reflecting complete submission to Allah.

Imam Nawawi and other commentators note that this practice distinguishes the Muslim method of bowing from other traditions and fulfills the Quranic command to "bow with those who bow" (Quran 2:43) in the manner taught by the Prophet Muhammad (peace be upon him).

Legal Ruling

The majority of scholars consider holding the knees during ruku' to be a confirmed sunnah (sunnah mu'akkadah). While omitting it doesn't invalidate the prayer, consciously abandoning this practice without valid reason is considered blameworthy as it constitutes neglecting an established prophetic teaching.