Al-Mutaqaaribaan — Close in Makhraj or Sifaat

tajweed Level: advanced assimilation tj-034

Mutaqaaribaan: Two letters close in makhraj or sifaat.

Hafs examples:
• Lam+Ra: "قُل رَّبِّ" — Lam merges into Ra
• Noon+Lam: "مِن لَّدُنِّي" — Idgham without Ghunnah
• Noon+Ra: "مِن رَّبِّهِم" — Idgham without Ghunnah

Source: Matn Al-Jazariyyah by Ibn Al-Jazari

Question: What is the ruling in "قُل رَّبِّ" and what type of proximity?

Answer: Idgham of Lam into Ra — close in tongue articulation point