Hi. At the beginning of the shiur you mentioned Rav Soloveitchiks reason citing his father as to Tosfasos' reason as to why women, kohanim and leviim DO in fact say birkas hamazon - i.e. since the "mechayev" of birkas hamazon is being in the category of 'al shehinchalta laAvoseinu' - and women, kohanim and leviim do have a yerusha so to speak from the avos. If so, according to this, why do geirim have to say birkas hamazon??? Are geirim patur from birkas hamazon according to Tosafos???

Hi. At the beginning of the shiur you mentioned Rav Soloveitchiks reason citing his father as to Tosfasos' reason as to why women, kohanim and leviim DO in fact say birkas hamazon - i.e. since the "mechayev" of birkas hamazon is being in the category of 'al shehinchalta laAvoseinu' - and women, kohanim and leviim do have a yerusha so to speak from the avos. If so, according to this, why do geirim have to say birkas hamazon??? Are geirim patur from birkas hamazon according to Tosafos???

Hi. At the beginning of the shiur you mentioned Rav Soloveitchiks reason citing his father as to Tosfasos' reason as to why women, kohanim and leviim DO in fact say birkas hamazon - i.e. since the "mechayev" of birkas hamazon is being in the category of 'al shehinchalta laAvoseinu' - and women, kohanim and leviim do have a yerusha so to speak from the avos. If so, according to this, why do geirim have to say birkas hamazon??? Are geirim patur from birkas hamazon according to Tosafos???