What is the ruling on interrupting the wording of an oath of contention (nadhr al-lajaj) with other words, and is it obligatory to fulfill it or is an expiation for breaking an oath (kaffarat yamin) required, and what are the implications of not specifying the type of rice vowed?

Separating the vow from the condition does not invalidate the vow; thus, it remains binding. This type of vow is a vow of obstinacy (nadhr al-lajaj), where its maker is given the choice between fulfilling it or offering an expiation for an oath (kaffarat yamin). As for fulfilling the vow, it remains general concerning all types of rice unless the one making the vow restricted it with a firm intention at the time of uttering the vow.