Hisham bin Ammar narrated it from Isma'il, from Utbah, from Yahya bin Abi Ishaq, who said: I asked Anas bin Malik, and he mentioned something similar. Hisham said: In this hadith (the narrator is named) Yahya bin Abi Ishaq al-Huna'i, and I think this is only an error; this is the hadith of Yahya bin Yazid al-Huna'i from Anas.
Shu'bah and Muhammad bin Dinar narrated it as mawquf (a statement of Anas).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10935