Musnad Ahmad 32:1131

Yazid narrated to us, Humaid informed us, from Anas, who said: "I have never smelled any musk or ambergris more pleasant than the scent of the Messenger of Allah, may Allah bless him and grant him peace. And I have never touched any silk or brocade softer than the palm of the Messenger of Allah, may Allah bless him and grant him peace."