Is there any authentic evidence regarding the prohibition of making a special effort for a guest?

Question:
Is what has been reported regarding the prohibition of making a special effort for a guest authentic?

Answer:
I do not recall anything in this regard except the saying of Allah the Exalted: [Surah Sad: 86].
In any case, when the believer reflects upon the texts, it becomes apparent from them that one should not make a special effort, and that Muslims should be lenient with one another; so that affection is established, and cooperation and visiting one another are established. As for making a special effort, that diminishes. The reality of the actions of the Companions indicates this, and I heard the story of 'Utbah ibn Malik:
He invited the Prophet (peace and blessings be upon him) to pray in his house, and the distance was far, and he did not prepare anything except a porridge, a porridge he served them, a thick porridge. I will provide you with an explanation of the porridge, and that it is a porridge made from flour, into which sometimes some fat is added, and sometimes small pieces of meat are added. This is known among the people of Najd as well, from old times, they make these porridges, putting in them some fat –the fat– or a little meat, small pieces.
And this... in the past... in the state of Madinah in all respects, not from the side that they lived on dates, nor from the side of food, and that it is light food, and that it is from wheat, and that a little fat or a little meat that they dry is put in it, as the Arabs did, and it is the meat that dries and then
a little of it is eaten in the food, this was known in the beginning of this century –in the beginning of the fourteenth century past and before it– as mentioned by those knowledgeable in Najd, but the world expanded for people, as it expanded for them in the era of the Umayyads, and the era of the Abbasids, and it expanded here in the second half of
the last century, and in this time.