Musannaf Ibn Abi Shaybah 34864 — What they said on the food and fruits

Al-Hasan (may Allah have mercy on him) said that Sayyiduna Abu Barzah (may Allah be pleased with him) stated: We were taking part in a military expedition. We met some people from among the polytheists, and we stopped them from eating bread baked on hot ashes. Then we too fell upon it and began to eat it. In the Time of Ignorance we used to hear that whoever eats bread grows fat. So when we ate this bread, each of us would look at himself to see whether he had grown fat.