[Mesorah] Bemidbar or Bamidbar?

[Zev Sero via Mesorah]

There's also the practise, particularly in letters and on matzevos, of
referring to a sedra by *any* distinctive phrase that occurs in it.
So a letter written tonight might be dated "or lor'vi`i leseder al
tachrisu", especially if that somehow fit the message.

-- 
Zev Sero               Meaningless combinations of words do not acquire
zev at sero.name          meaning merely by appending them to the two other
                        words `God can'.  Nonsense remains nonsense, even
                        when we talk it about God.   -- C S Lewis