Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bayhaqi:583 – Abū ʿAbdullāh al-Ḥāfiẓ And ʾAbū Saʿīd b. Abū ʿAmr > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Usayd b. ʿĀṣim > al-Ḥusayn b. Ḥafṣ > Sufyān > Yazīd b. Abū Ziyād > Miqsam > Ibn ʿAbbās

[Machine] Washing is obligatory for every person who sleeps, except for those who merely doze off.  

البيهقي:٥٨٣ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَأَبُو سَعِيدِ بْنُ أَبِي عَمْرٍو قَالَا نا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ نا أُسَيْدُ بْنُ عَاصِمٍ نا الْحُسَيْنُ بْنُ حَفْصٍ عَنْ سُفْيَانَ عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ عَنْ مِقْسَمٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

وَجَبَ الْوُضُوءُ عَلَى كُلِّ نَائِمٍ إِلَّا مَنْ خَفَقَ خَفْقَةً بِرَأْسِهِ هَكَذَا  

رَوَاهُ جَمَاعَةٌ عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ مَوْقُوفًا وَرُوِيَ ذَلِكَ مَرْفُوعًا وَلَا يَثْبُتُ رَفْعُهُ