What was the first Ghazwa (battle) that the Prophet Muhammad (saw) took part in?
 Narrated Abu 'Is-haq:                     Once, while I was sitting beside Zaid bin Al-Arqam, he was asked, "How many Ghazwat did the Prophet undertake?" Zaid replied, "Nineteen." They said, "In how many Ghazwat did you join him?" He replied, "Seventeen." I asked, "Which of these was the first?" He replied, "Al-`Ashira or Al- `Ashiru."