A tailor may not go out with his needle shortly before nightfall, lest he forget and go out. Neither may a scribe [go out] with his pen. One may neither delouse his garments nor read, by the light of a lamp. Indeed they said: The teacher may see where the children are reading, but he may not read. Similarly, a zav may not eat with a zavah, since it might lead to sin.

A person may not sit down before a barber shortly before [the time of] Minchah, until he prays — neither may a person enter a bathhouse, nor a tannery, nor [may he begin] to eat, nor to judge — but if he started, he need not interrupt. They must interrupt for the recitation of Shema, but they need not interrupt for prayer.