Qada

In Islamic legal terminology, Qada (Arabic: قُضِي) refers to a court judgement or the art of adjudication. A qada is binding and enforceable, unlike a fatwa, which is merely a legal opinion. Issued by a qadi (judge) in response to a specific case and circumstances. The qadi may request a fatwa to help determine the legal outcome of a specific case but is not bound to follow it. The decision is based on recognized legal precedent.
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[Islamic] "Decision, sentence given by a judge". God's decree, ie. human fate, our inescapable lot.

Dhu'l Qa'da:The 11th month of the Islamic calendar.

a-Lapsed or due prayers, fasts, etc.
b-decree