Musannaf Ibn Abi Shaybah 22403 — A man who buys goods from another

Dinar said: I said to al-Hasan (may Allah have mercy on him): "What about selling goods while saying: I am absolved of sores, of wounds, of throat swellings, and of every defect, outward and inward?" He (may Allah have mercy on him) said: "You will not be absolved until you say: In this item there is such-and-such a defect, and in this one such-and-such. If you do not say so, the goods will be returned to you."