מחר יהיה האות הזה

Lekovod the upcoming Bris of my Einikel

The Mahril writes to look for a Sandek

who is an Adam Kasher [V’tov]  (honest

& good person )  so that Eliyahu Hanavie

will attend.

The Mahril seems to say, Eliyahu Hanavie

only attends  Brisos, where the Sandek is

an Adam Kasher [V’tov].

Originally the Minhag was, to say a Tefillah

for the Refuah of the mother and child on

the Kos Shel Bracha. Afterwards, both,the mother

and child drank from the Kos.

The reason we say Aleinu after the Bris, is

because we are supposed  to skip the Aleinu

after the Davening, and end the Davening with

the Aleinu of after the Bris.