When the Messenger of Allah ﷺ sent him to Mecca, he forbade him from making a profit on what he had not yet taken into his possession.
حدثنا عثمان بن أبي شيبة حدثنا محمد بن الفضيل عن ليث عن عطاء
لما بعثه رسول الله ﷺ إلى مكة نهاه عن شف ما لم يضمن
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[Its chain is daif]. Busiri graded it daif, and said, "Ataa is Ibn Abu Rabah, and he did not meet Attab." See hadith 208 for its other defect.