It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) held a horse race competition and gave a prize to the winner.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5656
Hadith Gradingحکم دارالسلام:إسناده ضعيف لضعف عبد الله بن عمر العمري، وقد سلف بنحوه برقم: 5348، بإسناد صحيح .