يَا أَيُّهَا الَّذِينَ آمَنُواْ إِنَّمَا الْمُشْرِكُونَ نَجَسٌ فَلاَ يَقْرَبُواْ الْمَسْجِدَ الْحَرَامَ بَعْدَ عَامِهِمْ هَذَا وَإِنْ خِفْتُمْ عَيْلَةً فَسَوْفَ يُغْنِيكُمُ اللّهُ مِن فَضْلِهِ إِن شَاء إِنَّ اللّهَ عَلِيمٌ حَكِيمٌ
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سورة التوبة
(9/28) O you who believe (who wish to reach Allah before death)! The associators are nothing but filth (impure). Let them not approach Mescid-i Haram (the Sacred Mosque) after this year. If you fear poverty, Allah will enrich you if He wills, out of His Virtue. Surely, Allah is All-Knowing, All-Wise.
Surah At-Tawbah