Sahih al-Bukhari 1238
Sahih al-Bukhari · Book 23: Funerals (Al-Janaa'iz) · What is said about funerals, and those whose last words were: La ilãha ilallãh (none has the right to be worshipped but Allah)
Narrated `Abdullah:
حَدَّثَنَا عُمَرُ بْنُ حَفْصٍ ، حَدَّثَنَا أَبِي ، حَدَّثَنَا الأَعْمَشُ ، حَدَّثَنَا شَقِيقٌ ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ مَاتَ يُشْرِكُ بِاللَّهِ شَيْئًا دَخَلَ النَّارَ " . وَقُلْتُ أَنَا مَنْ مَاتَ لاَ يُشْرِكُ بِاللَّهِ شَيْئًا دَخَلَ الْجَنَّةَ .
Allah's Messenger (ﷺ) said, "Anyone who dies worshipping others along with Allah will definitely enter the Fire." I said, "Anyone who dies worshipping none along with Allah will definitely enter Paradise."