The piyyut contains seven verses, each four lines with 12 syllables per line. The first and last verses rhyme on an ABABABAB pattern, while the middle five verses follow an ABABABCD pattern, where C rhymes with A (4x) or B (1x) and D rhymes with the first verse. One 13th-century manuscript of
Machzor Vitry contains verses 1, 2, and 4, spelling ברך. One 14th-century fragment includes verses 6-7. Another manuscript of Machzor Vitry contains all seven verses. MS Schocken 22, a machzor for the Jews of
Corfu, also includes the piyyut.
Hagadol version An early alternative version of the last verse is found in
NLI Ms. Heb. 8°844, a 15th-century
Sephardic siddur, where it is marked as a "
pizmon for
Shabbat Hagadol". The piyyut mentions the commandment to eat matza and the Exodus. ==References==