Mishneh Torah, Blessings 11:9ืืฉื ื ืชืืจื, ืืืืืช ืืจืืืช ืืดื:ืืณ
The blessing shehecheyanu is recited:
[before] fulfilling every mitzvah that we are obligated to fulfill only at a specific time - e.g., shofar, sukkah, lulav, reading the Megillah, and [lighting] Chanukah candles,
[before fulfilling] every mitzvah that involves the acquisition of property - e.g., tzitzit, tefillin, and a guardrail - and
[before fulfilling] every mitzvah that we are obligated to fulfill infrequently - for this resembles a mitzvah we are obligated to fulfill only at a specific time - e.g., circumcising one's son and redeeming him.
If one did not recite the blessing shehecheyanu when making a sukkah or a lulav, one should recite this blessing when fulfilling the mitzvah. The same applies in other similar situations.
[before] fulfilling every mitzvah that we are obligated to fulfill only at a specific time - e.g., shofar, sukkah, lulav, reading the Megillah, and [lighting] Chanukah candles,
[before fulfilling] every mitzvah that involves the acquisition of property - e.g., tzitzit, tefillin, and a guardrail - and
[before fulfilling] every mitzvah that we are obligated to fulfill infrequently - for this resembles a mitzvah we are obligated to fulfill only at a specific time - e.g., circumcising one's son and redeeming him.
If one did not recite the blessing shehecheyanu when making a sukkah or a lulav, one should recite this blessing when fulfilling the mitzvah. The same applies in other similar situations.
ืึผึธื ืึดืฆึฐืึธื ืฉืึถืึดืื ืึดืึผึฐืึทื ืึดืึฐืึทื ืึผึฐืืึนื ืฉืืึนืคึธืจ ืึฐืกึปืึผึธื ืึฐืืึผืึธื ืึผืึดืงึฐืจึธื ืึฐืึดืึผึธื ืึฐื ึตืจ ืึฒื ึปืึผึธื. ืึฐืึตื ืึผึธื ืึดืฆึฐืึธื ืึผืึดืฆึฐืึธื ืฉืึถืึดืื ืงึดื ึฐืึธื ืืึน ืึผึฐืืึนื ืฆึดืืฆึดืืช ืึผืชึฐืคึดืึผึดืื ืึผืึฐืืึผืึธื ืึผืึทืขึฒืงึถื. ืึฐืึตื ืึดืฆึฐืึธื ืฉืึถืึตืื ึธืึผ ืชึผึฐืึดืืจึธื ืึฐืึตืื ึธืึผ ืึฐืฆืึผืึธื ืึผึฐืึธื ืขึตืช ืฉืึถืึฒืจึตื ืึดืื ืึผืึนืึธื ืึฐืึดืฆึฐืึธื ืฉืึถืึดืื ืึดืึผึฐืึทื ืึดืึฐืึทื ืึผึฐืืึนื ืึดืืึทืช ืึผึฐื ืึน ืึผืคึดืึฐืืึนื ืึทืึผึตื, ืึฐืึธืจึตืึฐ ืขึธืึถืืึธ ืึผึดืฉืึฐืขึทืช ืขึฒืฉืึดืึผึธืชึธืึผ ืฉืึถืึถืึฑืึธื ืึผ. ืึฐืึดื ืึนื ืึผึตืจึตืึฐ ืขึทื ืกึปืึผึธื ืึฐืืึผืึธื ืึฐืึทืึผืึนืฆึตื ืึผึธืึถื ืฉืึถืึถืึฑืึธื ืึผ ืึผึดืฉืึฐืขึทืช ืขึฒืฉืึดืึผึธื ืึฐืึธืจึตืึฐ ืขึฒืึตืืึถื ืฉืึถืึถืึฑืึธื ืึผ ืึผึฐืฉืึธืขึธื ืฉืึถืึผึตืฆึตื ืึฐืึตื ืืึนืึธืชืึน ืึผึธืึถื. ืึฐืึตื ืึผึธื ืึผึทืึผืึนืฆึตื ืึผึธืึถื:
Kessef Mishneh on Mishneh Torah, Blessings 11:9:1ืืกืฃ ืืฉื ื ืขื ืืฉื ื ืชืืจื, ืืืืืช ืืจืืืช ืืดื:ืืณ:ืืณ
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ืื ืืฆืื ืฉืืื ืืืื ืืื'. ืืคื ืฉืจืื ืจืืื ื ืงืฆืช ืืฆืืช ืฉืืืจืืื ืขืืืื ืฉืืืืื ื ืืงืฆืชื ืฉืืื ืืืจืืื ืื ืืืชื ืืขื ืืืืจ ืืื ืืืื ืืืืื ืืืื ืงื ืืชื ืื ืฉืืื ื ืืฆืื ืืื ืขืช ืืืื ืืืฆืื ืืืื ืืืื ืืืื ืืื ืื ืืฆืื ืฉืืื ืงื ืื ืื ืืื ืืื ืืืจื ืฉืืืืื ื ืืกืืื ืืืืื ืืคืืจืฉืื ืืืจืืืชื ืืคืจืง ืืืื ืืขืจืื (ืกืืื ื''ื) ืฉืืืจืืื ืขืืืื ืฉืืืืื ื ืืฆืืฆืืช ืืชืคืืืื ืืชืืกืคืชื ืืืจืืืช ืคืจืง ืืืจืื ืืืงืจื ืืืืื ืืคืืจืฉ ืืจืืฉ ืืงืืจื ืืช ืืืืืื ืขืืื (ืืืืื ื''ื) ืื ืจ ืื ืืื ืืคืืจืฉ ืคืจืง ืืื ืืืืืงืื (ืฉืืช ืืฃ ื''ื) ืืืืื ืืชืืืจ ืคืจืง ื' ืืืืืืช ืืืื ืื ืฉืืคืจ ืืืืืื ืืืขืงื ืืืืฃ ืืื ืืื ื: