مُوَطَّأُ مَالِكٍ
Muwatta Malik 1843
Jahannam
وَحَدَّثَنِي مَالِكٌ، عَنْ عَمِّهِ أَبِي سُهَيْلِ بْنِ مَالِكٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّهُ قَالَ أَتُرَوْنَهَا حَمْرَاءَ كَنَارِكُمْ هَذِهِ لَهِيَ أَسْوَدُ مِنَ الْقَارِ " . وَالْقَارُ الزِّفْتُ .
Malik related to me from his paternal uncle Abu Suhayl ibn Malik from his father that Abu Hurayra said, "Do you think that it is red like this fire of yours? It is blacker than tar."
Arabic/English book reference: Book 57, Hadith 2