Muhammad says that when an army of disbelievers came from the east, a man from the Ansar attacked them and broke through their ranks, emerging from the other side. Then he attacked them from behind and again broke through their ranks and came out. He did this two or three times. When seen from a distance, it was Hazrat Sa'd bin Hisham. When this was mentioned to Hazrat Abu Hurairah (may Allah be pleased with him), he recited this verse: Some people there are who sell their souls seeking Allah’s pleasure. (__QUR_N__ al-Baqarah: 207)