The following are beharos that are tahor: [Beharos] that [a person] had before the Torah was given; [that were] on a gentile who converted; [or] on a new-born child; on a fold [of skin] that became revealed; on the head or on the beard; on a raw boil, burn, or wound [lit. on a boil, or on a burn, or on a wound or on the rebellious ones]. If the head or the beard then became bald, or the boil, the burn, or the wound partially healed, they are tahor. [A nega appeared on] the head or the beard before they grew hair. They then grew hair, and [subsequently] became bald, or a boil, burn, or wound that did not yet scab, then a scab formed, and [the boil, burn, or wound] healed, R’ Eliezer ben Yaakov renders [these cases] tamei, since they began and ended as tamei, but the Sages render them tahor.

Their appearance changed, either leniently or stringently: How ‘‘leniently’’? [If] it was like snow and became like the lime of the Sanctuary, like white wool, or like egg membrane; [it] became a secondary shade [from] a s’eis, or [it became] a secondary shade [from] an intense [white]. How ‘‘stringently’’? It was like egg membrane and became like white wool, like the lime of the Sanctuary, or like snow. R’ Elazar ben Azaryah renders it tahor. R’ Elazar Chisma says: [If it changed] leniently, it is tahor, and [if it changed] stringently, it must be examined anew. R’ Akiva says: Whether [it changed] leniently or stringently, it must be examined anew.