Buraidah (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said, "Convey glad tidings to those who walk to the mosque in the darkness. For they will be given full light on the Day of Resurrection."[At-Tirmidhi and Abu Dawud].
App reference: Book 9, Hadith 68
Arabic/English book reference: Book 9, Hadith 1058