If the imam forgets the first tashahhud and they recite tasbih with him, and he does not return, what should they do?
Machine translationRead the Arabic original
The questioner : They recited tasbih with him, so he did not return to the first tashahhud.
The Shaykh : If it was after he stood up, it is not permissible for him to return.
The questioner : My answer to you is that I am from the work.
The Shaykh : No, he stands up with him.
The questioner : But they are watching the al-Fatihah in the Qur'an.
The Shaykh : This is if they recited tasbih with him before he stood up, before he had fully stood, and he did not return, because in this case he is required to return, so they have no excuse for following him, because his action is forbidden. Do you have this from you? If they recited tasbih with him before he stood up, he is required to return; if he did not return, they should recite al-Fatihah for themselves and follow him.
The Shaykh : If it was after he stood up, it is not permissible for him to return.
The questioner : My answer to you is that I am from the work.
The Shaykh : No, he stands up with him.
The questioner : But they are watching the al-Fatihah in the Qur'an.
The Shaykh : This is if they recited tasbih with him before he stood up, before he had fully stood, and he did not return, because in this case he is required to return, so they have no excuse for following him, because his action is forbidden. Do you have this from you? If they recited tasbih with him before he stood up, he is required to return; if he did not return, they should recite al-Fatihah for themselves and follow him.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 1108 - إذا نسي الإمام التشهد الأول وسبحوا به ولم يرجع فماذا يفعلون؟ ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.