مشكوة المصابيح
Mishkat al-Masabih
كتاب الصلاة
The Book of Prayer
(ٱلصَّلَاةُ أَوِ ٱلسُّجُودُ عِنْدَ ٱلْقُبُورِ ذَنْبٌ خَطِيرٌ)
(Praying or prostrating at graves is a grave sin)
Hadith 712
وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ فِي مَرَضِهِ الَّذِي لَمْ يَقُمْ مِنْهُ: «لَعَنَ اللَّهُ الْيَهُودَ وَالنَّصَارَى اتَّخَذُوا قُبُورَ أَنْبِيَائِهِمْ مَسَاجِد»
‘A’isha told of God's Messenger as saying in his illness from which he did not recover, “God curse the Jews and Christians! They have taken the graves of their prophets as mosques.” (Bukhari and Muslim.)
