It was narrated from Abu Mahdhurah that the Messenger of Allah taught him the Adhan with nineteen phrases and the Iqiimah with seventeen phrases, then Abu Mahdhurah counted them as nineteen and seventeen. (FR)
English reference (FR): Vol. 1, Book 7, Hadith 631 (FR)
Arabic reference (FR): Book 7, Hadith 637 (FR)