What is the ruling if the one praying forgets the first tashahhud?
Machine translationRead the Arabic original
The questioner : She says that she prayed one of the obligatory prayers and did not sit for the first tashahhud. What is required of her, O Shaykh? Does she repeat the prayer?
The Shaykh : If the one praying forgets the first tashahhud, it is obligatory for him to prostrate twice before the taslim.
The presenter : The second question.
The Shaykh : As for if she forgot to prostrate, or did not know that she was required to prostrate, and a long time has passed, then she owes nothing.
The presenter : May Allah reward you and bless you, Honorable Shaykh.
The Shaykh : If the one praying forgets the first tashahhud, it is obligatory for him to prostrate twice before the taslim.
The presenter : The second question.
The Shaykh : As for if she forgot to prostrate, or did not know that she was required to prostrate, and a long time has passed, then she owes nothing.
The presenter : May Allah reward you and bless you, Honorable Shaykh.
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 371- ما الحكم إذا نسي المصلي التشهد الأول/سؤال على الهاتف 📞 /ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.