Qur'an 9:107

وَٱلَّذِينَ ٱتَّخَذُوا۟ مَسْجِدًا ضِرَارًا وَكُفْرًا وَتَفْرِيقًۢا بَيْنَ ٱلْمُؤْمِنِينَ وَإِرْصَادًا لِّمَنْ حَارَبَ ٱللَّهَ وَرَسُولَهُۥ مِن قَبْلُ ۚ وَلَيَحْلِفُنَّ إِنْ أَرَدْنَآ إِلَّا ٱلْحُسْنَىٰ ۖ وَٱللَّهُ يَشْهَدُ إِنَّهُمْ لَكَـٰذِبُونَ

“And [there are] those [hypocrites] who took for themselves a mosque for causing harm and disbelief and division among the believers and as a station for whoever had warred against Allāh and His Messenger before. And they will surely swear, "We intended only the best." And Allāh testifies that indeed they are liars.”

At-Tawba 9:107 · Saheeh International