It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once some camels came to Madinah Munawwarah. The Prophet (peace and blessings be upon him) bought one of those camels, and the Prophet (peace and blessings be upon him) gained a profit of a few ounces of silver from it. The Prophet (peace and blessings be upon him) distributed that profit among the widows of Banu Abdul Muttalib and said, "I do not buy anything for which I do not have the price with me."