It was narrated from Abu Shuraih Al-Khuza'i that the Messenger of Allah(ﷺ) said:
"Whoever believes in the Last Day, let him honor his guest, and grant him reward for a day and a night. And it is not permissible for him to stay so long that he causes annoyance to his host. Hospitality is for three days, and whatever he spends on him after three days is charity."