Sahih al-Bukhari, Hadith 1238 ⓘ
Narrated `Abdullah: Allah's Messenger 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."
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.
also referenced under: Book 23, Hadith 2 (In-Book) & Volume 2, Book 23, Hadith 330 (USC-MSA)