Ubaydullah bin Abi Ziyad, or Yazid, heard Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) forbidding the sale of a ten-priced item for eleven or a ten-priced item for twelve, and he said: This is only the sale of the non-Arabs. It is possible that it was forbidden when one says: It is yours at ten for twelve, but he does not name the capital, and then names it at the time of payment; and likewise what is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10795