Sahih Al Bukhari (138)

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، قَالَ: حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، قَالَ: أَخْبَرَنِي كُرَيْبٌ، عَنِ ابْنِ عَبَّاسٍ "أَنَّ النَّبِيَّ صلّى الله عليه وسلم نَامَ حَتَّى نَفَخَ، ثُمَّ صَلَّى - وَرُبَّمَا قَالَ: اضْطَجَعَ حَتَّى نَفَخَ، ثُمَّ قَامَ فَصَلَّى - "ثُمَّ حَدَّثَنَا بِهِ سُفْيَانُ، مَرَّةً بَعْدَ مَرَّةٍ عَنْ عَمْرٍو، عَنْ كُرَيْبٍ، عَنْ ابْنِ عَبَّاسٍ، قَالَ: بِتُّ عِنْدَ خَالَتِي مَيْمُونَةَ لَيْلَةً فَقَامَ النَّبِيُّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ مِنَ اللَّيْلِ، فَلَمَّا كَانَ فِي بَعْضِ اللَّيْلِ قَامَ النَّبِيُّ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ "فَتَوَضَّأَ مِنْ شَنٍّ مُعَلَّقٍ وُضُوءًا خَفِيفًا يُخَفِّفُهُ - عَمْرٌو وَيُقَلِّلُهُ -، وَقَامَ يُصَلِّي، فَتَوَضَّأْتُ نَحْوًا مِمَّا تَوَضَّأَ، ثُمَّ جِئْتُ فَقُمْتُ، عَنْ يَسَارِهِ - وَرُبَّمَا قَالَ سُفْيَانُ عَنْ شِمَالِهِ - فَحَوَّلَنِي فَجَعَلَنِي عَنْ يَمِينِهِ، ثُمَّ صَلَّى مَا شَاءَ اللَّهُ، ثُمَّ اضْطَجَعَ فَنَامَ حَتَّى نَفَخَ، ثُمَّ أَتَاهُ المُنَادِي فَآذَنَهُ بِالصَّلاَةِ، فَقَامَ مَعَهُ إِلَى الصَّلاَةِ، فَصَلَّى وَلَمْ يَتَوَضَّأْ» قُلْنَا لِعَمْرٍو إِنَّ نَاسًا يَقُولُونَ: "إِنَّ رَسُولَ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ تَنَامُ عَيْنُهُ وَلاَ يَنَامُ قَلْبُهُ " قَالَ عَمْرٌو سَمِعْتُ عُبَيْدَ بْنَ عُمَيْرٍ يَقُولُ: "رُؤْيَا الأَنْبِيَاءِ وَحْيٌ، ثُمَّ قَرَأَ {إِنِّي أَرَى فِي المَنَامِ أَنِّي أَذْبَحُكَ} [الصافات: 102]

Kurayb reported: Ibn `Abbas said: "The Prophet (peace be upon him) slept till he snored and then offered Salah (or probably lay till his breath sounds were heard and then got up and offered Salah)." Ibn `Abbas added: "I stayed overnight in the house of my aunt, Maymunah, the Prophet (peace be upon him) slept for a part of the night, (See Fath-ul-Bary page 249, Vol. I), and late in the night, he got up and performed ablution from a hanging water skin, a light (perfect) ablution and stood up for Salah. I, too, performed a similar ablution, then I went and stood on his left. He drew me to his right and offered Salah as much as Allah wished, and again lay and slept till his breath sounds were heard. Later on the muezzin (call-maker for Salah) came to him and informed him that it was time for Salah. The Prophet (peace be upon him) went with him for Salah without performing a new ablution." (Sufyan said to `Amr that some people said: The eyes of Allah’s Messenger (peace be upon him) sleep but his heart does not sleep. `Amr replied: I heard `Ubayd ibn `Umar saying that the dreams of Prophets were Divine Inspiration, and then he recited the verse: "I (Abraham) see in a dream, (O my son) that I offer you in sacrifice (to Allah).” [Surat As-Safat: 102].