Sayyidina Ubadah ibn Samit (RA) reported that the Prophet (SAW) said, “Sell gold for gold like for like, and siiver for silver like for like, and date for date like for like, and wheat for wheat like for like, and salt for salt like for like, and barley for barley like for like. If anyone exceeds, in taking or giving then he has dealt in interest. Sell gold for silver as you like on spot payment, and wheat for dates as you like on spot payment, and barley for dates as you like on spot payment.” (credit and less measure are disallowed).
[Muslim 1587, Abu Dawud 3349, Nisai 4571, Ibn e Majah 2254]
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