Riyad as-Salihin

Abu Hurairah (May Allah be pleased with him) reported: I heard Messenger of Allah (ﷺ) saying, "He who is afraid of the pillage of the enemy, sets out in the early part of the night; and he who sets out early, reaches his destination. Be on your guard that the commodity of Allah is precious. Verily the commodity of Allah is Jannah".

[At-Tirmidhi, who classified it as Hadith Hasan].