Is it recommended to supplicate for the host after eating their food?
General Chapter
Al-Mughni
Book of the Wedding Feast
Primary text
It is recommended to supplicate for the host. This is supported by the narration where the Prophet (PBUH) was hosted by Abu Al-Haytham, and after finishing, the Prophet (PBUH) commanded his companions, "May you recompense your host." When asked what the recompense was, the Prophet (PBUH) clarified: "Indeed, when a man enters his house, eats his food, and drinks his drink, and they supplicate for him, that is his recompense" (Reported by Abu Dawud with a similar narration regarding Sa'd ibn 'Ubadah).
Supporting text
The supplication for the host includes the invocation: "May those who fast break their fast with you, and may the righteous eat your food, and may the angels send blessings upon you" (Reported by Abu Dawud).