The Mu'adh-dhin of Messenger of Allah would wait and he would not call the Iqamah until he saw the Messenger of Allah had come out, he would call the Iqamah when he saw him." (Using translation from Tirmidhī 202)   

كَانَ مُؤَذِّنُ رَسُولِ اللهِ ﷺ يُؤَذِّنُ ثُمَّ يُمْهِلُ وَلَا يُقِيمُ حَتَّى إِذَا رَأَى رَسُولَ اللهِ ﷺ قَدْ خَرَجَ أَقَامَ الصَّلَاةَ حِينَ يَرَاهُ  

[Machine] Bilal used to call for prayer (adhan) when the sun set, he would not delay it, and he would not establish the prayer until the Prophet ﷺ came out. Then, when the Prophet ﷺ came out, Bilal would establish the prayer as soon as he saw him.  

كَانَ بِلَالٌ يُؤَذِّنُ إِذَا زَالَتِ الشَّمْسُ لَا يَخْرِمُ ثُمَّ لَا يُقِيمُ حَتَّى يَخْرُجَ النَّبِيُّ ﷺ قَالَ فَإِذَا خَرَجَ أَقَامَ حِينَ يَرَاهُ  

[Machine] Bilal used to call for prayer (adhan) when sunrise came, but he wouldn't establish (i.e., start) the prayer until he saw the Prophet ﷺ . When he (Bilal) saw him (the Prophet), he would establish the prayer.  

كَانَ بِلَالٌ يُؤَذِّنُ إِذَا دَحَضَتْ ثُمَّ لَا يُقِيمُ حَتَّى يَرَى النَّبِيَّ ﷺ فَإِذَا رَآهُ أَقَامَ حِينَ يَرَاهُ  

[Machine] The caller of prayer of the Messenger of Allah ﷺ would give the call to prayer and then wait. He would not establish the prayer until he saw the Prophet ﷺ had come out, then he would establish the prayer when he saw him.  

«كَانَ مُؤَذِّنُ رَسُولِ اللهِ ﷺ يُؤَذِّنُ ثُمَّ يُمْهِلُ فَلَا يُقِيمُ حَتَّى إِذَا رَأَى النَّبِيَّ ﷺ قَدْ خَرَجَ أَقَامَ الصَّلَاةَ حِينَ يَرَاهُ»  

[Machine] Bilal used to give the call to prayer when the sun had dipped, meaning it had set. He would not start the prayer until the Prophet ﷺ came out. And when the Prophet came out, Bilal would establish the prayer at the time when he could see him.  

كَانَ بِلَالٌ يُؤَذِّنُ إِذَا دَحَضَتْ يَعْنِي الشَّمْسُ فَلَا يُقِيمُ حَتَّى يَخْرُجَ النَّبِيُّ ﷺ فَإِذَا خَرَجَ أَقَامَ الصَّلَاةَ حِينَ يَرَاهُ