Chapter 204

The desirability of a host saying ‘eat’ to his guests and others when they lift their hands from the food and saying it repeatedly until he has ascertained that they have had enough; and that of doing the same with drink, perfume, etc.

Remembrance 1
KNOW THAT THIS is mustaḥabb, so much so that it is mustaḥabb for a man with his wife and other dependants who he suspects have lifted their hands while they still need to eat, even only a little. Here is some of the evidence for this.
We relate from the Ṣaḥīḥ of al-Bukhārī that Abū Hurayrah Honorific symbol narrated a long hadith which includes manifest miracles of the Messenger of Allah Honorific symbol. Once when Abū Hurayrah Honorific symbol was extremely hungry he sat in the street requesting those who passed by him to recite the Qur’ān to him, hoping that they would invite him [to a meal]. Then the Messenger of Allah Honorific symbol sent him to the People of the Ṣuffah and he made them all drink their fill from a single goblet [of milk]. He recounted the hadith until he said: “The Messenger of Allah Honorific symbol told me: ‘Only I and you remain.’ I said: ‘You have spoken the truth, Messenger of Allah.’ He said: ‘Sit and drink.’ So I sat and drank. He said: ‘Drink.’ And I drank. He continued to say: ‘Drink’ until I said: ‘No, by Him Who has sent you with the truth, I cannot find any room for it.’ He said: ‘Let me see it.’ I gave him the goblet, and he praised Allah and mentioned His name and drank the remaining milk.” [1].

References

[1] Al-Bukhārī (6452).