Idgham: If after Noon Saakin or Tanween there appear any one of the followin six letters then the Noon
Saakin or Tanween will be incorporated into the letter.This is known as Idgham. The four letters the idgham
will be with Ghunna :ينمو
and in the remaning two The Idgham will be wothout Ghunna :رل
click here to listen to this ayah ويل لكل همزة لمزة