quoting from the Haggada of Rav Kasher the minhag of the Maharal(translated) After Bentching pour fourth cup of wine to all and an additional one in “honor” of Eliyahu placed in the center the baal ha bais drinks it after the Hallel Ha gadiol to be yotzei the fifth cup then opens the door in honor of Eliyahu and then begin to say ????? ???? ??? ?? ????? ???
followed by ???? ????