Levítico 19:35 Halacá: Shulchan Arukh, Choshen Mishpat, Kitzur Shulchan Arukh, Sefer HaChinukh & Mishneh Torah, Negative Mitzvot

The Judge is obliged to issue the verdict forthwith, [i.e., immediately] after it becomes absolutely certain to him, for if he delays⁴⁸Lit. ‘oppresses.’ judgment and [unduly] prolongs [the examination of] established matters in order [thereby] to afflict one of the litigants, such a one falls into the category of 'Ye shall do no unrighteousness [in judgment].'⁴⁹Lev. XIX, 35. Thus Tur and Yad, Sanhedrin XX, 6. Derived from Aboth V, 8. , San. 35a and Rashi a.l. s.v. לדייניה.

Anyone who gives short measure or weight, even to a non-Jew, transgresses a negative commandment as it is said:³Leviticus 19: 35. "Do not falsify measurements, whether in length, weight, or volume," (see Ch.182:1, 4 below). The punishment for giving short measure and weight is very severe, as it is impossible for a person who gives short measure or weight to repent properly, since he does not know how much and whom to compensate. Even the active participation in communal affairs is not considered suitable repentance.

To not cheat in measures, and all measures are included: To not cheat in liquid and dry measures, and not with scales; and included in measures is also the measuring of lands; and anything that is measured by people, such as clothes and that which is similar to them — as it is stated (Leviticus 19:35), “You shall not pervert justice with measures of length, weight or capacity (mesurah).” And they, may their memory be blessed, explained (Bava Metzia 61b) that mesurah is a liquid and a dry measure; and it is the smallest measure, as it is one thirty-third of a log. And we learn from this that the Torah is concerned about the smallest amount with measures; meaning to say that even though the Torah was only concerned about [the value of] a small coin with other thefts, regarding measures, it was concerned about the smallest amount.