A man who sells measured goods and a portion is deducted for the containers

Tawus disliked that anyone should sell ghee and olive oil in such a way that he deducts something on account of the container, and he would say: "No, except by pouring it out or by weighing it." (For example, he weighs the container and what is inside it as one hundred kilograms, then deducts ten grams from the hundred on the grounds that it is the weight of the container.)

Muhammad (may Allah have mercy on him) disliked qatr.

Ibn Awn said that qatr is when a man sells to another and sets aside part of the weight for the container.

Someone asked Ibn Sirin: "People sell goods in bawasin, and they set a known amount in it for the container?" He (may Allah have mercy on him) said: "They should sell by the full weight, and the container goes with it." (In the weighing, the container is counted along with it.)

Qatadah and Abu Hashim were asked about someone buying ghee or honey on the condition that he deducts a particular amount on account of the container, and they regarded doing so as disliked.

Ibrahim (may Allah have mercy on him) was asked about a Bedouin who came with a container of ghee and sells it in such a way that he sets aside some mann (a unit of weight) on account of the container. He (may Allah have mercy on him) said: "There is no harm in doing so."