The Rooms
يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تَرْفَعُوٓا۟ أَصْوَٰتَكُمْ فَوْقَ صَوْتِ ٱلنَّبِىِّ وَلَا تَجْهَرُوا۟ لَهُۥ بِٱلْقَوْلِ كَجَهْرِ بَعْضِكُمْ لِبَعْضٍ أَن تَحْبَطَ أَعْمَـٰلُكُمْ وَأَنتُمْ لَا تَشْعُرُونَ
O you who have believed, do not raise your voices above the voice of the Prophet or be loud to him in speech like the loudness of some of you to others, lest your deeds become worthless while you perceive not.
Nearby ayahs help place verse 49:2 in sequence and meaning.
يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ لَا تُقَدِّمُوا۟ بَيْنَ يَدَىِ ٱللَّهِ وَرَسُولِهِۦ ۖ وَٱتَّقُوا۟ ٱللَّهَ ۚ إِنَّ ٱللَّهَ سَمِيعٌ عَلِيمٌ
O you who have believed, do not put [yourselves] before Allah and His Messenger but fear Allah. Indeed, Allah is Hearing and Knowing.
إِنَّ ٱلَّذِينَ يَغُضُّونَ أَصْوَٰتَهُمْ عِندَ رَسُولِ ٱللَّهِ أُو۟لَـٰٓئِكَ ٱلَّذِينَ ٱمْتَحَنَ ٱللَّهُ قُلُوبَهُمْ لِلتَّقْوَىٰ ۚ لَهُم مَّغْفِرَةٌ وَأَجْرٌ عَظِيمٌ
Indeed, those who lower their voices before the Messenger of Allah - they are the ones whose hearts Allah has tested for righteousness. For them is forgiveness and great reward.
إِنَّ ٱلَّذِينَ يُنَادُونَكَ مِن وَرَآءِ ٱلْحُجُرَٰتِ أَكْثَرُهُمْ لَا يَعْقِلُونَ
Indeed, those who call you, [O Muhammad], from behind the chambers - most of them do not use reason.