بُلُوغُ الْمَرَامِ
Bulugh al-Maram 199
The Book of Prayer
وَلَهُ : عَنْ زِيَادِ بْنِ اَلْحَارِثِ - رضى الله عنه - قَالَ : قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ وَمَنْ أَذَّنَ فَهُوَ يُقِيمُ } وَضَعَّفَهُ أَيْضًا [1] .
He also reported from Ziyad bin al-Harith (RA): Allah's Messenger (ﷺ) said: "The one who announces the Adhan should also pronounce the Iqamah." [Reported by at-Tirmidhi who graded it Da'if (weak)].
Sunnah.com reference: Book 2, Hadith 62