Halakhah for Berakhot 3:13

From the laws of the commandment is that which they, may their memory be blessed, said (Mishneh Torah, Laws of Heave Offerings 7:1) that an impure priest that ate pure priestly tithe is [punishable] with the death penalty and is lashed for it. But if he ate impure priestly tithe - even though it is [forbidden] with a negative commandment - he is not lashed, as it is not holy. And that which they said (Berakhot 2a) that impure ones eat priestly tithe with the sun setting and they see three medium stars in the firmament - and that time period is like a third of an hour after the setting of the sun. And that which they, may their memory be blessed, said about one who was eating priestly tithe and felt that his limbs shuddered to ejaculate semen, and that which they said about camel drivers. And that which they said (Bekhorot 27a) about the priestly tithe of outside the Land, that it is permitted to a priest that the impurity does not come out to him from his body - such as a boy minor who did not experience an emission or a girl minor who has not [yet] become menstruant. And that which they said (Chullin 130b) that all ignoramuses are assumed to be impure, and so we only give the priestly tithe to priests who know to keep it in purity. And I have also mentioned above (Sefer HaChinukh 159) some of the laws of the impurities in general and in particular.