Nafi' reports: Whenever Abdullah bin Umar (may Allah be pleased with them both) saw a person who did not raise his hands while bowing in prayer, he would pick up pebbles to throw at him until that person started raising his hands.
Hadith Referenceسنن الدارقطني / كتاب الصلاة / 1118
Hadith Gradingمحدثین:صحيح
Hadith Takhrij«صحيح ، وأخرجه الدارقطني فى ((سننه)) برقم: 1118، والحميدي فى ((مسنده)) برقم: 627،»