Verse 3

إِنَّ ٱلَّذِينَ يَغُضُّونَ أَصْوَٰتَهُمْ عِندَ رَسُولِ ٱللَّهِ أُو۟لَـٰٓئِكَ ٱلَّذِينَ ٱمْتَحَنَ ٱللَّهُ قُلُوبَهُمْ لِلتَّقْوَىٰ لَهُم مَّغْفِرَةٌ وَأَجْرٌ عَظِيمٌ

Surely, those who lower their voices in the presence of God’s messenger are the ones whom God has tested their hearts for righteousness. Reserved for them are forgiveness and a great recompense.