score:2
The other answer is misleading.
I'm Christadelphian and been to many Christadelphian baptisms. There isn't an exact phase you MUST use, it's not treated as some sort of magical incantation in the sense you have to get exactly right or it's not a valid baptism. I've heard several phrases used although can't recall what they were exactly right now. Generally though it's either, "I baptize you in the name of the Father, and of the Son, and of the Holy Spirit", or some minor variation on those words.
The article quoted in the other answer evaluates different alternative options and the author offers a couple of suggestions as quoted. I've never heard those suggestions actually used in practice, they may have been used by someone at some time. However there is a good chance that they never have and this was purely an academic exercise by the author.
Generally though we put far more emphasis on what what the baptismal candidate believes, than the exact wording at the moment they are fully immersed.
Likewise I would have thought the fact we don't believe in the trinity (and therefore the Athanasian Creed) would be a bigger issue for the Catholic Church than the exact wording at baptism?
Upvote:2
What is the wording used for Christadelphian baptism?
With these considerations before us, an appropriate baptismal formula would be either: “…upon this your public confession before these witnesses, we baptize you into the name of the Lord Jesus Christ for the remission of your sins and the hope of eternal life.” Or we could say: “…we baptize you into the name of the Father which has been manifested in the Son through the power of the holy spirit for the remission of sins and hope of eternal life.”