Vinegar is the best curry

Abdullah ibne-Ubaid ibne-Umair Rahimahullah said
that Jabir Radiyallahu ‘anhu came to me
with a group of the Sahabah of
Rasullullah Sallallahu alaihi wasallam.
Jabir Radiyallahu anhu placed before them bread and vinegar and said:
Eat, I have heard from Rasullullah Sallallahu alaihi wasallam saying:
Vinegar is the best curry.
Verily a man is ruined, when some brothers come to his house
and he considers it low to place before them
things that he has in his house;
and ruined are those people
who consider low that is being placed before them.

In another narration it is stated
that it is evil enough for a person that he may consider low
what is presented to him.

(Musnad Ahmad, Tabarani, Abu Yala, Majma-uz-Zawaid)