لاَ تَقُمْ فِيهِ أَبَدًا لَّمَسْجِدٌ أُسِّسَ عَلَى التَّقْوَى مِنْ أَوَّلِ يَوْمٍ أَحَقُّ أَن تَقُومَ فِيهِ فِيهِ رِجَالٌ يُحِبُّونَ أَن يَتَطَهَّرُواْ وَاللّهُ يُحِبُّ الْمُطَّهِّرِينَ
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سورة التوبة
(9/108) Do not ever pray there. Certainly a Masjid founded on Piety (Takwâ) from the very first day is more worthy to pray in it. Within it are men who love to purify (their hearts) themselves. And Allah loves those who are purified.
Surah At-Tawbah