Abdullah bin Umar reported,

Some people were with the Prophet ﷺ, so he called Bilal to bring some dates that he had. Bilal brought dates that the Messenger of Allah ﷺ did not recognize.He asked, "What dates are these?"Bilal replied, "The dates we had were of poor quality, so I exchanged two saa of them for one saa of these."The Messenger of Allah ﷺ said, "Return our dates to us."

حدثنا يعلى حدثنا فضيل يعني ابن غزوان عن أبي دهقانة

عن ابن عمر قال

كان عند النبي ﷺ أناس فدعا بلالا بتمر عنده فجاء بتمر أنكره رسول الله ﷺ فقال ما هذا التمر فقال التمر الذي كان عندنا أبدلنا صاعين بصاع فقال رد علينا تمرنا