(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." (IT)
Reference (IT): Sunan Ibn Majah 730 (IT)
In-book reference (IT): Book 3, Hadith 25 (IT)
English translation (IT): Vol. 1, Book 3, Hadith 730 (IT)