(6) باب إِفْرَادِ الإِقَامَةِ
It was narrated that Anas said:
"Bilal was commanded to say the phrases of the Adhan twice and the phrases of the Iqamah once." (JA)
Reference (JA): Sunan Ibn Majah 730 (JA)
In-book reference (JA): Book 3, Hadith 25 (JA)
English translation (JA): Vol. 1, Book 3, Hadith 730 (JA)