Ruling on Praying in a Mosque Established Without Taqwā

Source:
Fatawa of the Scholars of Hadith, Kitāb al-Ṣalāh, Vol. 1

Question​

Can I lead the congregational prayer in a Barelvi mosque before the adhān has been called, while in the same village the Ahl al-Ḥadīth mosque’s adhān has already been proclaimed? Will my prayer be valid?

Answer​

① Mosque Founded on Taqwā and Ikhlāṣ

• It is not permissible to pray or establish one’s congregation in any mosque whose foundation was not laid upon taqwā and sincerity, even if that mosque belongs to the Ahl al-Ḥadīth.

② Scriptural Evidence

• Allah Most High says:
  
  "يَا أَيُّهَا النَّبِيُّ لَا تَقُمْ فِي صَلَاةٍ لِمَسْجِدٍ أَحَلَّ اللَّهُ لَهُ النَّاسَ أَنْ يَكُونُوا وَذِكْرُهُ فِي الْحَيَاةِ الدُّنْيَا أَقْصَىٰ وَأُولَٰئِكَ الَّذِينَ خَرَجُوا مِن دِيَارِهِمْ..."
  (Sūrah al-Tawbah 9:108)
  

③ Conclusion

• Therefore, performing prayer in a mosque lacking in ikhlāṣ and taqwā is not appropriate, regardless of its affiliation.

And Allah knows best.