"I had an agreement with Umaiya bin Khalaf (that he would look after my relatives and property in
Mecca, and I would look after his relatives and property in Medina)." `Abdur-Rahman then mentioned
the killing of Umaiya and his son on the day of Badr, and Bilal said, "Woe to me if Umaiya remains
safe (i.e. alive) . "
Sahih al-Bukhari Book 64, Hadith 24