Musnad Abu Ya'la al-Mawsili 110:253

Zuhayr narrated to us, Abdullah bin Numayr narrated to us, from al-Hajjaj, from Husayn bin Abdullah, from Ikrimah, from Ibn Abbas: That the Prophet (peace be upon him) granted a concession regarding dyed garments for the one in the state of Ihram, as long as it was not [dyed with] saffron (nafd) or red ochre (rad').