The mu.adhdhin saying “and say all Praise for Him who has no offspring” before the adhaan

Reference: Question via telephone – al-Bid’u wal-Muhdathaat wa maa laa Asla lahu – Page 202

Question: Is the saying of the mu.adhdhin “and say all Praise for Him who has no offspring” [و قل الحمد لله الذي لم يتخذ ولدا] an innovation?

Response: Yes, this saying “and say all Praise for Him who has no offspring” is an innovation.