Sunan an-Nasa'i 1897
سنن النسائي#1897Sahihأَخْبَرَنَا 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
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 21:80