פורים קטן

(41) Whoever has had a miracle occur for them, and all the more so the inhabitants of a city, can establish, by popular agreement, for themselves and those who come after them to make that day into a “Purim”. And it seems to me that the meal which they make to commemorate the miracle is considered at the level of a seudat mitzvah [meal with halachic weight] ... So, too, do we practice regarding the miracle which was performed for us in the year 5564, the night of the 16th of Kislev. There was death in the courtyard in which I live because of a conflagration which started from gunpowder. Several houses in the courtyard fell, including one house that was mine. In the room where my whole family was located, two half-walls and one beam fell ... Not a single one (i.e. member of the family) did not shed at least some drops of blood. G-d in His mercy and kindness considered for us the blood like a sacrifice to atone, and saved us, and all of us remained alive. Even though I suffered a great loss of several hundred adumim (a currency), G-d in His kindness substituted blood for money [lit. damim for damim]. Aside from us, there were killed, in our many sins, in my courtyard, 31 people ...