The U.S. Supreme Court case Abraham v. Casey in 1900 revolved around a dispute over land ownership and the interpretation of a will. The plaintiff, Abraham, claimed that he was entitled to certain lands based on the terms of his father's will. However, the defendant, Casey (the executor of the estate), argued that these lands were not part of the inheritance as they had been sold prior to his death under an agreement with another party who held a mortgage on them. The main legal issue concerned whether this sale was valid or if it should be considered fraudulent because it occurred shortly before death when creditors could have made claims against those assets for outstanding debts owed by deceased. In its decision, Supreme Court ruled in favor of Casey stating that there wasn't enough evidence presented to prove fraudulence or invalidity regarding pre-death sale transaction; thus confirming validity and legality thereof which meant disputed lands weren't part any longer from inheritable estate property according to provisions contained within last testament left behind by decedent at time passing away.

The dissenting opinion in the case of Abraham v. Casey argued that the majority's decision to uphold a law requiring certain businesses to close on Sundays was an unconstitutional violation of religious freedom. The dissenters contended that while it is within the state's power to regulate commercial activity for public welfare, this particular law went beyond such regulation and instead imposed a specific religious observance. They pointed out that not all religions observe Sunday as a day of rest, thus making the law discriminatory against those who do not adhere to Christian beliefs about Sunday worship. Furthermore, they asserted that even if some people choose or are required by their faiths to refrain from work on Sundays, it does not justify forcing others into similar observance through legislation. This imposition infringes upon individual rights and liberties protected under the Constitution according to them.