
Abu Bakr's speech after Muhammad's death; Bukhari, Volume 2, Chapter Manaqibe Abu Bakr; zitiert in: Dawat-ul-Amir http://www.alislam.org/library/articles/death1.htm, English translation: Invitation to Ahmadiyyat, First Edition, pg. 17-21, by Mirza Basheer-ud-Din Mahmood Ahmad