Questioner: O Shaikh! You said concerning the hadith about giving the adhaan in the ear of a newborn child that its chain of narration is weak?
Questioner: You said that its chain of narration is weak, is that statement correct, O Shaikh?
Al-Albaani: Yes, yes, correct.
Al-Hudaa wan-Noor, 594.
Also refer to this post.