After making that decision, Lin Fan didn't go back out right away.
Instead, he took some time to rest up in the camp with the other elders.
That fight with the robot had really drained them and they didn't know what was out there, so it would be too risky to go out now before recovering their power.
If they were to meet another powerful opponent, that might just be it for them. After all, there was no guarantee that they would be able to run from his powerful opponent this time.
They stayed in the camp for the rest of the 'night' since the sky did become dark after a while.
Then when the sun rose in the morning, they planned on heading out again.
But this time, it was the elders who were going out to explore while Lin Fan was going out with his two disciples.
He had been planning on going, but the elders insisted that he stay with these two.