Hadith Research Libraryمكتبة الحديث والرجال
Mishkat al-Masabih, 318

Hadith text · Matn

وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " إِنَّ الْوُضُوءَ عَلَى مَنْ نَامَ مُضْطَجِعًا فَإِنَّهُ إِذَا اضْطَجَعَ اسْتَرْخَتْ مفاصله. رَوَاهُ التِّرْمِذِيّ وَأَبُو دَاوُد

English translation

Ibn ‘Abbas reported God’s messenger as saying, “Ablution is necessary for one who sleeps lying down, for when he lies down his joints are relaxed.” Tirmidhi and Abu Dawud transmitted it.

References1 variant
In-Book Reference
Book 3, Hadith 34