Bada'

In Twelver Shi'ism, '''''' () means change in a divine decree in response to new circumstances. A textbook example of in Twelver sources is the death of Isma'il, the eldest son of the Shia imam Ja'far al-Sadiq (). Isma'il was probably the expected or even the designated successor but he predeceased his father, who is said to have used the occasion to teach his followers about .

Rather than an arbitrary change, refers to advancement or postponement in an act of creation without altering the overall divine design. More specifically, often occurs when a divine decree on some matter is suspended until the autonomous decision of the creation occurs. For instance, believing in repentance () and praying for a better destiny are said to be impossible without believing in . As another example, the reappearance of Muhammad al-Mahdi, the eschatological figure in Twelver Shi'ism, is said to have been postponed multiple times because of human acts.