If you are about to bow down without reading Qunoot 9942414141

If there is any mistake on the part of Imam Sahib while praying in congregation, it is the duty of the Muqtadis to warn the Imam by saying ‘Subhanallah’ or ‘Allahu Akbar’. This will not harm their prayers. In the mentioned situation, although the muqtadis were warning to return from fard to wajib by saying takbeer (the imam could have done sajdah sahu at the end without accepting it), their prayers will not be void. The duty is to bow when the hand reaches the knee and the amount is low. It is sunnat to keep the head along the waist and back in ruku. Thus, if the amount of one-third of the ruku 'in the surah described in the question is equal to or more than the obligatory ruku', then the du'aa 'should have been performed at the end without returning to recite Qunoot. And it was the duty of Imam Sahib to do that. However, standing from the ruku 'to the qawma and reciting the qunoot in the du'aa', without going to the ruku 'for the second time, he would go straight to the sijdah and finish the prayer. However, in such cases, one had to perform sahu in prostration. But it is not proper to bow again, but the prayer will be performed and in this surah also sahu will be obligatory in prostration. 8259676655