Oh yes. Hospitality is the central theme of Genesis 19, for instance, which definitely predates The Wanderer. I feel a little bad now, because I can't provide you with a solid set of sources, but every culture all the way back to the earliest stories we have will give references to the obligation of a host, the duties of a guest, and how gift-giving plays into that. The whole point of the Trojan War wasn't precisely that property had been stolen, but more importantly that it had been done by a guest to his host. (As modern readers, we recognize a breach of private property more clearly than we recognize a breach of hospitality.)

It's the earliest form of debt-as-community-glue, really. It only survives today in the habit of bringing a bottle of wine to a dinner party, and in the handshake. We mostly rely on codified laws of hospitality instead (which govern restaurants and hotels).