It was narrated that Ibn 'Umar said:"I heard the Prophet say; 'do not wear shirts, or pants, or 'Imamahs, or burnouses, or Khuffs while in Ihram.'''(sahih)
Hadith No. 2678
Sunan an Nasai
Gradings:
Abu Ghuddah:
Sahih
Al-Albani:
Sahih
Zubair Ali Zai:
Isnaad Sahih