(Thwaha) 20 : 10
إِذْ رَأَىٰ نَارًا فَقَالَ لِأَهْلِهِ امْكُثُوا إِنِّي آنَسْتُ نَارًا لَعَلِّي آتِيكُمْ مِنْهَا بِقَبَسٍ أَوْ أَجِدُ عَلَى النَّارِ هُدًى
When he saw a fire and said to his family: "You stay here; indeed I have perceived a fire; perhaps I can bring you a fire log or find at the fire some Guidance".
After 10 years of Midian life, Moses returned to Egypt with his family. And on their way back to Egypt, they found it difficult to travel in the chilled night. So when he saw a light at mount Thwoor, he told his family as told in this verse and went there. See explanation 2: 50.