What is the first half of the Pasuk coming to teach us?
Rashi (citing Kidushin 21a): It is coming to include houses and Avadim Ivrim to be returned in Yovel.
Rashi: With reference to the following Parshah, 1 it is coming to obligate the purchaser to return the field, in the event that the seller comes to redeem it before the Yovel any time after two years.
Ramban, Moshav Zekenim and Seforno: It implies that the laws of Shemitah and Yovel apply throughout Eretz Yisrael, 2 but not in Chutz la'Aretz. "B'Chol" including Eiver ha'Yarden and the other lands that we possess, not just the primary Eretz Yisrael, in which the Beis-Hamikdash was built.
Riva (according to R. Eliezer, Kidushin 21a): This is obligates one to redeem what his relative sold.
What are the implications of "Ki Geirim ve'Sochavim Atem Imadi"?
Rashi (in Divre3i Hayamim 1, 29:15): It implies that we have no portion. Inheritance or possession in the land other than tthe right to sojourn in it.
QUESTIONS ON RASHI
Rashi writes that this refers to the following Parshah; the buyer must allow the seller to redeem his field before Yovel. This is unreasonable; the next Parshah begins 'when your brother will become poor'!
Refer to 25:24:1:1,3,4.
Mizrachi: It is reasonable that our verse include a case relevant to the coming Parshah. "Ki Yamuch