Two tests underlie the division of sajʿ: taqfiyah, agreement at the ending, and wazn, correspondence of word patterns. One type also compares internal expressions across clauses.
TypeDistinguishing condition
MuṭarrafShared terminal rhyme, differing patterns in the end words
MutawāzīEnd words agree in pattern and terminal rhyme
MuraṣṣaʿMost or all paired expressions throughout the clauses agree in pattern and rhyme
These are organizing criteria; muraṣṣaʿ must be analyzed across the paired clauses, not just the final word.