Abu Ishaq (may Allah have mercy on him) said: I came to the gathering of Banu Abd al-Muttalib and asked their elders in how many garments the Messenger of Allah (peace and blessings be upon him) had been shrouded. They said: "In two red garments, which did not include a shirt."
Hadith Referenceالمعجم الكبير للطبراني / باب الحاء / 3254