Sahih Muslim 606
Sahih Muslim · Book 5: The Book of Mosques and Places of Prayer · When should the people stand up to pray?
Jabir b. Samura reported:
وَحَدَّثَنِي سَلَمَةُ بْنُ شَبِيبٍ ، حَدَّثَنَا الْحَسَنُ بْنُ أَعْيَنَ ، حَدَّثَنَا زُهَيْرٌ ، حَدَّثَنَا سِمَاكُ بْنُ حَرْبٍ ، عَنْ جَابِرِ بْنِ سَمُرَةَ ، قَالَ كَانَ بِلاَلٌ يُؤَذِّنُ إِذَا دَحَضَتْ فَلاَ يُقِيمُ حَتَّى يَخْرُجَ النَّبِيُّ صلى الله عليه وسلم فَإِذَا خَرَجَ أَقَامَ الصَّلاَةَ حِينَ يَرَاهُ .
Bilal summoned to prayer as the sun declined but did not pronounce Iqama till the Messenger of Allah (ﷺ) came out and the Iqama was pronounced on seeing him.