Talmud do Królów I 5:2

What means “he shall alterate”? He shall change. If he is used to eat a pound³⁷⁹A Roman pound of 12 unciae, 345g. of meat he shall eat half; if he is used to drink a sextarius³⁸⁰Possibly Greek ξέστης; in both Talmudim the equivalent of a log (.53 l) but in the Galilean Targumim the equivalent of a hin, 12 log (6.5 l). Babli 30a. of wine he shall drink half. Rebbi Joḥanan said, but only for the main meal of the Ninth of Av. Rav³⁸¹In G: Rebbi. In the Babli, Rav Jehudah. Hoshaia said, and only in the afternoon. Rebbi Yose says, both statements are for leniency. If he ate the main meal of the Ninth of Av before noon, even if he brings on his table like Salomon’s meal it is permitted. If he ate his meal³⁸²Intending to eat another later in the afternoon. in the afternoon, even if he brings on his table like Salomon’s meal in his time³⁸³1K. 5:2–3. it is permitted. It was stated: If the Ninth of Av fell on a Friday or the day before the Ninth of Av on a Sabbath, even if he brings on his table like Salomon’s meal in his time it is permitted³⁸⁴Babli 29b.. Rav after he had eaten his fill was coloring his piece of bread with ashes and said, this is the main meal of the Ninth of Av, to keep what is said³⁸⁵Thr. 3:16. Mentioned in Thr. rabba ad loc., He filled me with asperity, made me imbue poison.