Muwatta Imam Malik Book of Hajj, Hadith 16

Yahya related to me from Malik from Hisham ibn Urwa that Fatima bint al-Mundhir said, "We used to veil our faces when we were in ihram in the company of Asma bint Abi Bakr as-Siddiq."
20.7 Wearing Perfume during Hajj.

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ فَاطِمَةَ بِنْتِ الْمُنْذِرِ، أَنَّهَا قَالَتْ كُنَّا نُخَمِّرُ وُجُوهَنَا وَنَحْنُ مُحْرِمَاتٌ وَنَحْنُ مَعَ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ الصِّدِّيقِ .