Hadith 415 a - The Book of Prayers - Sahih Muslim - صحيح مسلم - Collection of Actions, Sayings and Teachings of Prophet Muhammad (صلى الله عليه و سلم) - Kutub as-Sittah

4. The Book of Prayers - كتاب الصلاة

20) Chapter: The Prohibition Of Preceding The Imam In Saying The Takbir Or Anything Else

Abu Huraira reported:

The Messenger of Allah (ﷺ) while teaching us (the principles of faith), said: Do not try to go ahead of the Imam, recite takbir when he recites it. and when he says:" Nor of those who err," you should say Amin, bow down when lie bows down, and when he says:" Allah listens to him who praises Him," say:" O Allah, our Lord, to Thee be the praise".

Reference: 415 a
English reference: Book 4, Hadith 828
In-book reference: Book 4, Hadith 94
Grade: Sahih
Read this hadith from Darussalam Collection

20) باب النَّهْىِ عَنْ مُبَادَرَةِ الإِمَامِ، بِالتَّكْبِيرِ وَغَيْرِهِ ‏

حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، وَابْنُ، خَشْرَمٍ قَالاَ أَخْبَرَنَا عِيسَى بْنُ يُونُسَ، حَدَّثَنَا الأَعْمَشُ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُعَلِّمُنَا يَقُولُ ‏‏ ‏.‏ "‏ لاَ تُبَادِرُوا الإِمَامَ إِذَا كَبَّرَ فَكَبِّرُوا وَإِذَا قَالَ وَلاَ الضَّالِّينَ ‏.‏ فَقُولُوا آمِينَ ‏.‏ وَإِذَا رَكَعَ فَارْكَعُوا وَإِذَا قَالَ سَمِعَ اللَّهُ لِمَنْ حَمِدَهُ ‏.‏ فَقُولُوا اللَّهُمَّ رَبَّنَا لَكَ الْحَمْدُ ‏"