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.
Sahih al-Bukhari Book 23, Hadith 32
← Previous Hadith The Prophet (ﷺ) came to (the grave of) `Abdullah bin Ubai after his body was buried. The body was brought out and then the Prophet (ﷺ) put his saliva over the body and clothed it in his shirt.

Sahih al-Bukhari Book 23, Hadith 31 Next Hadith → Allah's Messenger (ﷺ) was shrouded in three pieces of cloth and neither a shirt nor a turban were used.

Sahih al-Bukhari Book 23, Hadith 33