Is the statement that Zakat al-Fitr is a confirmed Sunnah and not obligatory considered a valid statement with evidence, or is it a false statement?

Zakat (definition) al-Fitr is an obligation established by the Prophetic Sunnah (definition). The word "فرض" (farḍ - obligation/duty) mentioned in the Ahadith indicates its obligatoriness, which is the view adopted by the majority of Usulis (legal theorists) and the four Imams, unlike the opinion of the Zahiris. Consensus on its obligatoriness has been نقل (narrated/transmitted) from a number of scholars, such as Al-Bayhaqi and Ibn al-Mundhir. The disagreement regarding its obligatoriness is considered weak and anomalous, based on the possibility of its command being abrogated, which is a view not to be relied upon.