In the beginning of the Choshen Mishpat in the Aruch Hashulchan, around siman 3-4, he mentions one of the 3 shevuot as a halacha.
Even the Ramban, where he codifies the Mitsvah of living in Israel (at the end of the Rambam’s sefer Hamitzvot) says that today there is a Mitsvah for each individual to inherit the land. This appears about 2/3 down in the paragraph. It seems that he felt that there is the halacha of Lo Yaalu BiChoma