It is narrated from Sayyiduna Abdullah bin Umar, Sayyiduna Abu Hurairah, and Sayyiduna Abu Saeed (may Allah be pleased with them) that the Noble Prophet (peace and blessings be upon him and his family) said: Gold for gold should be equal to each other, and silver for silver should be equal to each other, they should be exactly equal to one another; whoever gives more or demands more, he has engaged in usury. Sharahbeel says: If I have not heard this hadith, may Allah admit me into the Fire.