Mishnà su Levitico 23:10

Five species [of grains] are subject to [the law of] hallah: wheat, barley, spelt, oats and rye. These are subject to hallah, and [dough made from different types of these grains] are accounted together one with another [as one quantity]. And their “new” [harvest] is prohibited prior to Pesah, and [they are subject] to [the prohibition of] reaping prior to the Omer. If they took root prior to the Omer, the omer permits them. If not, they are prohibited until the next Omer has come.

One enters a city and doesn’t know anyone. He says: “Who here is trustworthy? Who gives tithes here?” One person one responds: “I am.” He may not be trusted. [But if] he replied: “So-and-so is trustworthy,” he may be trusted. He went to buy from so-and-so, and he asked him: “Who here sells aged produce?” and so-and-so replied: “He sent you to me,” though they appear to be repaying each other, they may be trusted.

Ten wonders were wrought for our ancestors in the Temple: [1] no woman miscarried from the odor of the sacred flesh; [2] the sacred flesh never became putrid; [3] no fly was ever seen in the slaughterhouse; [4] no emission occurred to the high priest on the Day of Atonement; [5] the rains did not extinguish the fire of the woodpile; [6] the wind did not prevail against the column of smoke; [7] no defect was found in the omer, or in the two loaves, or in the showbread; [8] the people stood pressed together, yet bowed down and had room enough; [9] never did a serpent or a scorpion harm anyone in Jerusalem; [10] and no man said to his fellow: the place is too congested for me to lodge overnight in Jerusalem.