(134) باب يُكْتَبُ لِلْمُسَافِرِ مِثْلُ مَا كَانَ يَعْمَلُ فِي الإِقَامَةِ
Narrated Ibrahim Abu Isma`il As-Saksaki:
I heard Abu Burda who accompanied Yazid bin Abi Kabsha on a journey. Yazid used to observe fasting on journeys. Abu Burda said to him, "I heard Abu Musa several times saying that Allah's Apostle said, 'When a slave falls ill or travels, then he will get reward similar to that he gets for good deeds practiced at home when in good health."
Reference: Sahih al-Bukhari 2996
In-book reference: Book 56, Hadith 205
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 52, Hadith 239