The people of
Medina
("Yathreb") received the Prophet and his followers with great enthusiasm . Mohamed (Pbuh) himself assisted in the building of the first mosque where he preached his simple religion of Islam . He preached brotherly love and kindness towards all human beings , especially children , widows and orphans . Not only did the Prophet (Pbuh) abolish all tribal distinction applying himself to the task of introducing order at Medina , but he also abolished blood feud and repressed lawlessness . Equal rights were granted to the Jews , who lived in large numbers in and about Medina . Mohamed made peace among hostile tribes , especially the Owes and the Khazrags whom he called Ansaar (or helpers) and placed them on equal foot with the Emigrants .