It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "A Muhrim should not wear clothes dyed with wars or saffron."
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5243
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ : 5794 .