The Book of Funerals
21/39. Chapter:
The Shroud Of The Prophet
Sunan an-Nasai
أَخْبَرَنَا إِسْحَاقُ، قَالَ أَنْبَأَنَا عَبْدُ الرَّزَّاقِ، قَالَ حَدَّثَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ، قَالَتْ كُفِّنَ النَّبِيُّ صلى الله عليه وسلم فِي ثَلاَثَةِ أَثْوَابٍ سُحُولِيَّةٍ بِيضٍ .
It was narrated from Samurah that the Prophet said: "Wear white clothes for they are purer and better, and shroud your dead in them."'
Reference : Sunan an-Nasa'i 1897In-book reference : Book 21, Hadith 80English translation : Vol. 3, Book 21, Hadith 1897