"Infidels freely offer their property to prevent people from joining the way of God."
The Holy Qur'an

When the Muslims migrated to Medina, they were laxed from the molestation's of the Quraysh, but they were faced with the deadly hardship of poverty and indigence, for, the emigrants had left behind all their property, houses and relatives and had taken refuge in the city of Islam that is Medina. Of course, the people of Medina, named Ansar (helpers), so far as they were able, assisted these emigrants, but the people of those days were not so well off as to provide themselves with a comfortable life, especially as a group of them had no dwellings or financial means to support themselves. Nevertheless, despite these shortcomings and deficiencies the number of the followers of Islam increased every day, and gradually they were able to present themselves as a new force in the Arabian Peninsula, and show their strength.
In the second year of the Hijrah an event took place which produced the first great battle of Islamic era. For many long years the Quraysh had been engaged in trade travels and transport of goods to foreign lands, and every year they regularly visited Yemen and once a year they took their merchandise to ash-Sham. In the second year of the Hijrah, as usual a big caravan headed by Abu Sufyan, father of Mu'awiyah, had left for ash-Sham. On their return, the Prophet and a group of three hundred confronted the caravan demanding the lost property of the Muslims in Mecca.
When Abu Sufyan heard the news, he asked Mecca for help, and then tried to choose another route to return. To help Abu Sufyan, the Quraysh summoned a force of one thousand soldiers to fight the Prophet's army who were small in number. Thus, started the battle of Badr, in an area called the same. Occult aid and the self-sacrifice of Islamic warriors brought them victory, while the other side lost seventy men and another seventy were taken captive.
Of the sons of Abd Shams of the Umayyads eight men were