Abu Hurairah narrated that The Messenger of Allah (s.a.w) said:
"Whoever fears traveling at night - and whoever travels at night reaches his destination - Allah provides him with the most precious of goods, and indeed Allah's goods are but Paradise." (PT)
English reference (PT): Vol. 4, Book 11, Hadith 2450 (PT)
Arabic reference (PT): Book 37, Hadith 2638 (PT)