Jami` at-Tirmidhi 202
جامع الترمذي#202SahihJabir bin Samurah narrated:The Mu'adh-dhin of Allah's Messenger would wait and he would not call the Iqamah until he saw the Allah's Messenger had come out, he would call the Iqamah when he saw him
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Bashar Awad MaaroufHasan
Zubair Ali ZaiSahih
In-book reference: 2:54