Is it true that divine decree (qada’) in Islam is not divided into absolute (mubram) and suspended (mu’allaq) decree, and that, according to the Sunnis, there is only absolute decree?

The correct view is that divine decree (Qada') is of two types: absolute (mubram) and conditional (mu'allaq). The absolute decree is the eternal preordainment written in the Preserved Tablet (Al-Lawh Al-Mahfuz), and it does not change. The conditional decree is what is in the scriptures of the angels, and it changes through supplication (du'a'), maintaining kinship ties, and giving charity. This is based on the Almighty's saying: "Allah erases what He wills or confirms [what He wills], and with Him is the Mother of the Book," and based on the Prophet's (peace be upon him) saying: "Nothing averts divine decree except supplication," and "Indeed, a trial descends, and supplication meets it, and they wrestle with each other," and "Supplication benefits against what has descended and what has not descended."