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