The Imam says Allahu Akbar instead of Sami' Allahu liman hamidah

Question:
And when you descend, if the imam of the mosque says Allahu Akbar instead of Sami' Allahu liman hamidah, I alerted him by raising my voice saying Sami' Allahu liman hamidah. Is that not impossible?

Answer:
But did he say Sami' Allahu liman hamidah when I alerted him? If he said it, the objective was achieved. If he did not say it, he has left an obligatory act, so he must perform the prostration for forgetfulness. And there is no harm in you alerting him; there is no harm, because this is a remembrance of the same type as what is said in the prayer, Sami' Allahu liman hamidah, being among the remembrances of the prayer. So if you recite it aloud, there is no harm. Yes.