Al-Muakhir - The Delayer, The Postponer, He Who Puts Far Away. He places things where they should exactly belong. He advances and postpones whatever He pleases in His infinite wisdom and absolute justice. He decreed everything before He created the creation. He promotes whomever He wills to the higher positions of the righteous predecessors and delays and holds back whomever he wills, in His absolute wisdom and justice. No one can advance whatever He delays, nor delay whatever He advances.

Allah سُبْحَٰنَهُۥ وَتَعَٰلَىٰ is Al-Mu’akhkhir (in Arabic: ٱلْمُؤَخِّرُ), The One who wisely delays or holds back. By His will, he can detain unbelievers and hold them back on the day of judgment.

Evidence: The Prophet ﷺ said, “…You (i.e. Allah) are the Advancer and You are the Delayer…” (Reported by Al-Bukhaaree and Muslim)