Batalnya wudhu: tali pantat adalah kedua mata, maka barangsiapa yang tidur, hendaklah dia berwudhu
Imam Ahmad : 16274مَضْرُوبٌ عَلَيْهِ حَدَّثَنَا عَبْد اللَّهِ قَالَ وَجَدْتُ هَذَا الْحَدِيثَ فِي كِتَابِ أَبِي بِخَطِّ يَدِهِ حَدَّثَنَا بَكْرُ بْنُ يَزِيدَ وَأَظُنُّنِي قَدْ سَمِعْتُهُ مِنْهُ فِي الْمُذَاكَرَةِ فَلَمْ أَكْتُبْهُ وَكَانَ بَكْرٌ يَنْزِلُ الْمَدِينَةَ أَظُنُّهُ كَانَ فِي الْمِحْنَةِ كَانَ قَدْ ضُرِبَ عَلَى هَذَا الْحَدِيثِ فِي كِتَابِهِ قَالَ حَدَّثَنَا بَكْرُ بْنُ يَزِيدَ قَالَ أَخْبَرَنَا أَبُو بَكْرٍ يَعْنِي ابْنَ أَبِي مَرْيَمَ عَنْ عَطِيَّةَ بْنِ قَيْسٍ الْكِلَابِيِّ أَنَّ مُعَاوِيَةَ بْنَ أَبِي سُفْيَانَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ الْعَيْنَيْنِ وِكَاءُ السَّهِ فَإِذَا نَامَتْ الْعَيْنَانِ اسْتُطْلِقَ الْوِكَاءُ
This hadith needs to be noted, Narrated to us that Abdullah said: I found this hadith in my father's book in his own handwriting, He narrated to us [Bakr bin Yazid], as far as I remember, I heard it from him in mudzakarah but I didn't write it down. Bakr lived in Medina, I think it was during the mihnah (trial) and this hadith was crossed out in his book, saying: Narrated to us [Bakar bin Yazid] said: has Narrated to us [Abu Bakr], namely Ibn Abu Maryam, from ['Athiyyah bin Qais Al Kilabi] indeed [Mu'awiyah bin Abu Sufyan] said: The Prophet peace and blessings be upon him said: "Indeed, the two eyes are like a lid on a hole, if both eyes are asleep, then the lid opens.