عَنْ أَبِي لَيْلَى رَضِيَ اللَّهُ عَنْهُ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقْرَأُ فِي صَلَاةٍ لَيْسَتْ بِفَرِيضَةٍ فَمَرَّ بِذِكْرِ الْجَنَّةِ وَالنَّارِ، فَقَالَ: ((أَعُوذُ بِاللَّهِ مِنَ النَّارِ، وَيْحٌ أَوْ وَيْلٌ لِأَهْلِ النَّارِ))
Sayyiduna Abu Laila (may Allah be pleased with him) says: I heard the Messenger of Allah (peace and blessings be upon him) reciting during prayer, and it was not an obligatory prayer. When he (peace and blessings be upon him) passed by the mention of Paradise and the Fire, he said: "I seek refuge with Allah from the Fire. Woe or destruction is for the people of the Fire."