Sunan Abi Dawud Book 28, Hadith 117
The Prophet (ﷺ) said: If anyone spends the night with grease on his hand which he has not washed away, he can blame only himself if some trouble comes to him.
When the Messenger of Allah (ﷺ) ate or drank, he said: "Praise be to Allah Who has given food and drink and made it easy to swallow, and provided an exit for it.
AbulHaytham ibn at-Tayhan prepared food for the Messenger of Allah (ﷺ), and he invited the Prophet (ﷺ) and his Companions. When they finished (food), the said: If some people enter the house of a man, his food is eaten and his drink is drunk, and they supplicate (to Allah) for him, this is his reward.