Aisha reported: The Messenger of Allah, peace and blessings be upon him, was shrouded for his funeral in three white cotton garments, among which was neither a shirt nor a turban.
Source: Ṣaḥīḥ al-Bukhārī 1214, Ṣaḥīḥ Muslim 941
Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim
عَنْ عَائِشَةَ قَالَتْ كُفِّنَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي ثَلَاثَةِ أَثْوَابٍ بِيضٍ سَحُولِيَّةٍ مِنْ كُرْسُفٍ لَيْسَ فِيهَا قَمِيصٌ وَلَا عِمَامَةٌ
1214 صحيح البخاري كتاب الجنائز باب الكفن بلا عمامة
941 صحيح مسلم كتاب الجنائز باب في كفن الميت