وَعَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى عَنْ أَبِي لَيْلَى رَضِيَ اللَّهُ عَنْهُ قَالَ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقْرَأُ بِصَلَاةٍ لَيْسَتْ بِفَرِيضَةٍ فَمَرَّ بِذِكْرِ الْجَنَّةِ وَالنَّارِ فَقَالَ: ”أَعُوذُ بِاللَّهِ مِنَ النَّارِ وَيْحٌ أَوْ وَيْلٌ لِأَهْلِ النَّارِ“
It is narrated from Sayyiduna Abu Laila (may Allah be pleased with him), he says: I heard that the Messenger of Allah (peace and blessings be upon him) was reciting (Qur'an) in a prayer, while that prayer was not obligatory. When he passed by the mention of Paradise and Hell, he made this supplication: "A‘udhu billahi min an-naar, wayh aw wayl li-ahl an-naar." (I seek refuge with Allah from the Fire; woe or destruction is for the people of the Fire.)