Sahih al-Bukhari 1271
Narrated `Aisha:
The Prophet (ﷺ) was shrouded in three pieces of cloth which were made of Suhul (a type of cotton), and 
neither a shirt nor a turban were used.
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا سُفْيَانُ، عَنْ هِشَامٍ، عَنْ عُرْوَةَ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ قَالَتْ كُفِّنَ النَّبِيُّ صلى الله عليه وسلم فِي ثَلاَثَةِ أَثْوَابِ سَحُولَ كُرْسُفٍ، لَيْسَ فِيهَا قَمِيصٌ وَلاَ عِمَامَةٌ‏.‏