[Regarding] a leg [of a bed] that was tamei midras and one connected it to a bed, (the entire) [bed] becomes tamei midras. [If the leg is] removed, it is tamei midras, and the bed is [tamei due to] contact with a midras [hazav]. [If the leg] was tamei with seven-day tumah and one connected it to a bed, the entire bed becomes tamei with seven-day tumah. [If the leg is] removed, it is tamei with seven-day tumah, and the bed is tamei with evening-tumah. [If the leg] was tamei with evening-tumah and one connected it to a bed, the entire bed becomes tamei with evening-tumah. [If the leg is] removed, it is tamei with evening-tumah, and the bed is tahor. The same [rulings apply to] the prong of a pitchfork.

[Regarding] a tefillin [consisting of of] four utensils: [If] one separated the first compartment and [then] repaired it, it is tamei with corpse-tumah, and the same applies to the second [compartment], and the same applies to the third [compartment]. If he separated the fourth one, [the tefillin] is tahor from corpse-tumah, but it is tamei with tumah [due to] contact with a t’mei meis. If he went back to the first [compartment] and separated it and then repaired it, it is tamei due to contact, and the same applies to the second [compartment]. If he separated the third [compartment], [the entire tefillin] is tahor, because the fourth one is [only tamei] as a result of contact, and [an object contaminated through] contact [with an av hatumah] cannot create [tumah through] contact [with a utensil].