How to prompt the imam

Question

The imam of our mosque was leading the afternoon ('asr) prayer and in the fourth rak'a, instead of sitting, he stood up by oversight. So one of the muqtadis said “Allahu akbar” so that he would become aware of his oversight. After completing the prayer the imam said that the ruling is this: if the imam makes an oversight he should be alerted by means of “Subhan Allah”, and saying “Allahu akbar” is permissible. As proof he cited the practice of Hazrat al-Mughira ibn Shu'ba ﵁ from “Sunan al-Tirmidhi”, p.

Answer

Apart from 'Abd al-Rahman ibn Abi Layla, this narration is also transmitted through other routes, in which a cause of weakness is present, and its own weakness also becomes (?). See “Sunan al-Tirmidhi” at the page referred to.

Source: Fatawa Mahmudiyya

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