Shama-il Tirmidhi Chapter 048, Hadith Number 001 (341).

Abu Sa'eed Khudari Radiyallahu 'Anhu says that Rasulullah Sallallahu 'Alayhi Wasallam was more bashful than a virgin girl in her veil (purdah). When Rasulullah Sallallahu 'Alayhi Wasallam did not like something, it could be seen on his face. (Because of his excessive Modesty he did not mention it).

Commentary
The 'Ulama have given two meanings for the words 'a virgin in her veil (Purdah)'. One group among the 'ulama say it means a virgin girl in her veil, that she is more shameful than that virgin girl who roams about. However every virgin is bashful, therefore the shari'ah has recognised the silence of a virgin girl as her consent for her-nikaah, as bashfulness is natural for a virgin girl, and especially the girl who is in purdah. Some 'ulama have said that by the girl in purdah, that girl is meant, who is brought up in purdah and also makes purdah from other women. It is a custom in many families, where purdah is observed from those women who go about. It is clear from this, how modest such a girl will be? The second meaning that some of the 'ulama have given is that 'in purdah' is taken metaphorically, that the modesty shown by a virgin girl (bride) on her first night is evident. (It is sad that this does not exist in many western orientated circles today).