501. Text of the Zimmun
Brachos 5:4
If ten or more adult males eat together, the call to bentch (zimmun) is recited with God's Name. The leader says, "Let us bless our God, of Whose bounty we have eaten.” The other diners respond, “Blessed be our God, of Whose bounty we have eaten and by Whose goodness we live.” The leader repeats this last phrase, then starts bentching.
Brachos 5:5
When eating in the home of a groom, from the time when preparations for the wedding have begun until 30 days after the wedding, the one leading bentching says, “Let us bless the One in Whose abode there is joy, of Whose bounty we have eaten.” The other diners respond, “Blessed be the One in Whose abode there is joy, of Whose bounty we have eaten.” If ten adult males are bentching, the leader adds God’s Name, saying, “Let us bless our God, in Whose abode there is joy, of Whose bounty we have eaten.” The other diners reply, “Blessed be our God, in Whose abode there is joy, of Whose bounty we have eaten.” For twelve months after a wedding, whenever a meal is held because of the wedding, the phrase, "in Whose abode there is joy” is included.