Musab bin Saad bin Abu Waqqas reported,

Musab prayed beside his father, and when he bowed he interlaced his fingers and placed them between his knees. His father struck his hands. When he had finished the prayer, his father said, "We used to do this, but then we were ordered to place our hands on our knees."

Muslim 1197

Sahih

حدثني الحكم بن موسى حدثنا عيسى بن يونس حدثنا إسمعيل بن أبي خالد عن الزبير بن عدي

عن مصعب بن سعد بن أبي وقاص قال

صليت إلى جنب أبي فلما ركعت شبكت أصابعي وجعلتهما بين ركبتي فضرب يدي فلما صلى قال قد كنا نفعل هذا ثم أمرنا أن نرفع إلى الركب

مسلم 1197صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Muslim
Book
Mosques and places of prayer
Chapter
Recommendation to place the hands on the knees in ruku and abrogation of clasping
Numbering
Darussalam 1197
Muslim 1197