Which is one of the four one-word exceptions?

Sākin Nūn & Tanwīn — Iẓhār, Idghām, Qalb and Ikhfāʾ

• دُنْيَا
• مَنْ يَقُولُ
• مِنْ وَالٍ
• مِنْ رَبِّهِمْ