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." (DE)
English reference (DE): Vol. 4, Book 11, Hadith 2450 (DE)
Arabic reference (DE): Book 37, Hadith 2638 (DE)