قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " إِذَا أُقِيمَتِ الصَّلاَةُ فَلاَ تَقُومُوا حَتَّى تَرَوْنِي وَعَلَيْكُمْ بِالسَّكِينَةِ ".
Abu Qatadah reported: The Messenger of Allah ﷺ said, “When the iqamah is called, do not stand up until you see me, and keep to calm.”
also in Sahih al-Bukhari 637