When three ate together, one must invite the others to bless, as follows:
My masters, let us bless.
All those present answer, (and the leader then repeats):
May the Name of Hashem be blessed from now and forever. (Psalms 113:2)
The leader says (if there are ten, adding the Name of G-d):
With the permission of our gentlemen and our teachers and my masters, let us bless [our G-d] from Whom we have eaten.
Those present answer:
Blessed is [our G-d] from Whom we have eaten and from Whose goodness we live.
The leader repeats:
Blessed is [our G-d] from Whom we have eaten and from Whose goodness we live.
All say:
Blessed are You, Hashem our G-d, King of the Universe, who nourishes the entire world in His goodness, in grace, in kindness and in mercy; He gives bread to all flesh since His kindness is forever. And in His great goodness, we always have not lacked, and may we not lack nourishment forever and always, because of His great name. Since He is a Power that feeds and provides for all and does good to all and prepares nourishment for all of his creatures that he created. Blessed are You, Hashem, Who sustains all.