Sahih Al Bukhari – Book of Fasting

Volumn 003, Book 031, Hadith Number 215. 
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Narated By Abu Said Al-Khudri Razi Allah Anhu : (Who fought in twelve Ghazawat in the company of the Prophet Peace Be Upon Him). I heard four things from the Prophet Peace Be Upon Him and they won my admiration. He said: 

1. "No lady should travel on a journey of two days except with her husband or a Dhi-Mahram. 
2. "No fasting is permissible on the two days of Id-ul-Fitr and 'Id-ul-Adha. 
3. "No prayer (may be offered) after the morning compulsory prayer until the sun rises; and no prayer after the 'Asr prayer till the sun sets. 
4. "One should travel only for visiting three Masajid (Mosques): Masjid-ul-Haram (Mecca), Masjid-ul-Aqsa (Jerusalem), and this (my) Mosque (at Medina)."