Maaseh Rav Siman 45
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
מודים דרבנן החתימה בשם בא"י אל ההודאות (עי' בש"ע שלו סי' קכ"ז ס"ק ב'). וכן ברכת בורא נ"ר חותם בשם:
Sefaria Community Translation
'Modim D’Rabanan' should be concluded with the name of G-d - "Blessed are You G-d, the Almighty to Whom all thanks are due." (See the Gra's comments on Shulchan Aruch 127:2) and the blessing of 'Borei Nephashot Rabot' is also concluded with the name of G-d.