It is narrated from Hazrat Thawban (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The best dinar is the one which a man spends on his family, or spends on his mount in the way of Allah.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 22453