The Prophet said: "Wear white garments, for they are purer and better, and shroud your dead in them."
Sunan an-Nasa'i Book 48, Hadith 283
← Previous Hadith "A woman brought a Burdah" - Sahl said: "Do you know what a Burdah is?" They said: "Yes, it is a cloak with two woven borders" - and she said: 'O Messenger of Allah, I wove this with my own hands for you to wear.' The Messenger of Allah took it as he had need of it, then he came out to us and he was wearing it as his Izar (lower garment)."

Sunan an-Nasa'i Book 48, Hadith 282 Next Hadith → "The Messenger of Allah said: 'You should wear white garments; dress your living ones in them, and shroud your dead in them, for they are among the best of your garments.'"

Sunan an-Nasa'i Book 48, Hadith 284