How did John reward Black Beauty for saving him?

John takes care of Black Beauty that night by drying him, putting on his blanket, and feeding him a good dinner before bed.
When Black Beauty reaches the bridge, he can tell something is wrong. He refuses to continue forward and possibly put himself, John, and Mr. Gordon in danger. John urges him on but Beauty stays still and won't go forward. At the last moment, a man rushes out and warns them that the bridge is broken. If they'd gone forward, they'd have fallen into the stream.
When they get home, John takes care of Beauty. He dries him and gives him his blue blanket. After dinner, Beauty is able to sleep. Unfortunately, Beauty is eventually sold away by the Gordons and doesn't see John again for the rest of the novel.