At-Tawbah 9:61

وَمِنۡهُمُ ٱلَّذِينَ يُؤۡذُونَ ٱلنَّبِيَّ وَيَقُولُونَ هُوَ أُذُنٞۚ قُلۡ أُذُنُ خَيۡرٖ لَّكُمۡ يُؤۡمِنُ بِٱللَّهِ وَيُؤۡمِنُ لِلۡمُؤۡمِنِينَ وَرَحۡمَةٞ لِّلَّذِينَ ءَامَنُواْ مِنكُمۡۚ وَٱلَّذِينَ يُؤۡذُونَ رَسُولَ ٱللَّهِ لَهُمۡ عَذَابٌ أَلِيمٞ 61

And among them are those who abuse the Prophet and say, "He is an ear." Say, "[It is] an ear of goodness for you that believes in Allah and believes the believers and [is] a mercy to those who believe among you." And those who abuse the Messenger of Allah - for them is a painful punishment