The Book of Purification

Bulugh al-Maram #99

كتاب الطهارة

وَلِأَبِي دَاوُدَ أَيْضًا, عَنْ اِبْنِ عَبَّاسٍ مَرْفُوعًا: «إِنَّمَا اَلْوُضُوءُ عَلَى مَنْ نَامَ مُضْطَجِعًا» وَفِي إِسْنَادِهِ ضَعْفٌ أَيْضًا

And Ibn ‘Abbas (rad) narrated in a Marfu’ (traceable) Hadith that:

“Ablution is necessary for one who sleeps while he is lying flat. .

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