Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates this saying of the Prophet (peace and blessings be upon him): "Horses are of three kinds: a horse for the Most Merciful, a horse for man, and a horse for Satan. As for the horse of the Most Merciful, it is the one that a man keeps tethered in the way of Allah: its fodder, its urine and its dung (after that he mentioned whatever Allah willed). As for the horse of Satan, it is the one on which a man gambles and which he takes to horse races. As for the horse of man, it is the horse that a man keeps tethered seeking to breed from it, and it is a protection against poverty."
Imam Ahmad recorded it, and its narrators are thiqat (trustworthy). If al-Qasim bin Hassan heard from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), then this hadith is "sahih" (authentic).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجهاد / 9338
Hadith Gradingمحدثین:إسنادہ منقطع
Hadith Takhrij«اخرجه احمد فى المسند (3756) ، أخرجه مسند أحمد برقم: 3747»