He Should No Longer Be Called Avram But Avrohom

לא יקרא עוד את שמך אברם והוה שמך אברהם (בראשית יז, ה)

Berachos 13a: Bar Kapara: One who calls Avrohom "Avram" transgresses an Aseh -- "v'Hayah Shimcha Avrohom"; R. Eliezer says, he transgresses a Lav -- "v'Lo Yikarei Od Es Shimcha Avram."

None of the lists of the 613 Mitzvos list this as one of the positive or negative Mitzvos. Why not?

1. Some say this concept is only from the rabbis and the text is used as an asmachta.
2. Maharil Diskin suggests that this law was only applicable while Avrohom was alive, and is no longer applicable after he passed away.
3. Ben Ish Chai states this mitzvah will be applicable again after the arrival of Moshiach.
4. Rashbatz says this law was not listed since was given prior to the giving of the Torah.

What are the practical aspects of this law today?

1. Most Rishonim (Rif, Rosh, Rambam) do not mention this law.
2. Mogen Avrohom does mention this law. However, Mishneh Berurah and other later poskim do not mention this law.
3. Divrei Menachem suggests that this law only applies to someone who wishes to change the name of Avrohom Avinu, but does not apply to anyone else named Avrohom (and thus is permitted to call such a person Avram).
4. However, the Sdei Chemed says this law does not apply to someone whose original name was Avram and changed it to Avrohom. However, this law does apply to someone whose original name is Avrohom that such a person is not allowed to be called Avram.
5. Minchas Yitzchak says that everyone is lenient to use nicknames for children with the name of Avrohom, such as Avremel or Avram. The only possible violation would be if the child was actually named after Avrohom Avinu.
6. Maharshal says some families have a tradition to name a child Avram after an ancestor that had that name. Perhaps, originally, the parents wanted to name a child Avrohom after an ancestor, but were unable since a living relative (from another side) was already named Avrohom.
7. Bais Yechezkel: The people of Poland and Hungary do express a concern for this law when they are careful not to swallow the letter “heh” when they said the name Avrohom, whether in tefilah or when reading the Torah.