In Mesechta Sofrim it states that we recite Vezos Hatorah and Toras Hashem Temimah. This is brought in the ruling of the Shulchan Aruch. However, in almost all Nusachaos the Pasuk Toras Hashem is not recited. Sefardi Nusachos include the verse Torah Tziva Lanu and Ha-El Tamim Darko.
Many Siddurim, including the Siddur Shela”h and Yaavetz, add the words Al Pi Hashem Beyad Moshe after Vezos Hatorah. This is the standard Nusach Ashkenaz.
Many Acharonim, including the Aruch Hashulchan, are perplexed by the custom of adding the words Al Pi Hashem Beyad Moshe. It comes from a completely different Pasuk and has no connection to Vezos Hatorah. Further, it is not mentioned in Mesechta Sofrim.
Others also question that these additional words are the concluding words of a Pasuk and we are not generally permitted to say only part of a Pasuk. It is recorded in the name of Rav Chaim of Volozhin that one should say the entire Pasuk from its beginning.
The extra words Al Pi Hashem are not included in Nusach Ari or Sefardi Nuschaos. This was also the Nusach preferred by the Minchas Elozor.
One should only begin saying Vezos Hatorah when they see the writing of the Torah.
