الزَّكَاةُ وَاجِبَةٌ.
Translation: Zakat is obligatory.
Wajibah states that zakat is legally binding. Its foundational obligation is established by the Qur’an, Sunnah and consensus; it is not simply voluntary generosity on the part of a qualifying owner.
In legal language, “wajib” can also be used broadly for a binding duty. Here it affirms the established obligation of zakat rather than making a technical contrast between categories of fard and wajib.