Sayyiduna Abdullah bin Umar (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that he (peace and blessings be upon him) said: "A woman in ihram should not wear the niqab nor wear gloves."
(b) It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) as his own statement (mawquf) that she shall neither wear the niqab nor wear gloves.
(c) The Shaykh says that Ubaydullah bin Umar used to narrate the hadith up to the words 'wa la wars' ("nor wars (a fragrant dye)"). Then he said: He (Sayyiduna Abdullah bin Umar (may Allah be pleased with him)) used to say: A woman in ihram shall neither wear the niqab nor wear gloves.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9046