Do the people of a town commit a sin if they do not host a guest who has stayed with them?

Question:
A man asked for hospitality from more than one person in a town, and they made excuses and did not host him. Do they commit a sin?

Answer:
If he stayed with them and they all made excuses, they commit a sin.
Q: And if they host him but do not give him his due, is it permissible for him to take it without their permission?
A: It is reported in a hadith that if they do not provide him with what is obligatory, it is permissible for him to take it. However, if he fears fitnah (trial, discord or temptation), he should not, and he should treat them with the best manner so that no fitnah (trial, discord or temptation) occurs.
Q: Okay, and if the food is general property, for example, in a field with crops, and they did not host him, does he take from this field?
A: Yes, he takes his due.