Musannaf Ibn Abi Shayba 16:501

Abu Bakr narrated to us, he said: Waki' narrated to us, from Usama bin Zayd, from Abdullah bin Hunayn, he said: I heard Ali saying: The Messenger of Allah (may Allah bless him and grant him peace) forbade me—and I do not say he forbade you—from wearing saffron-dyed garments.