Last night when I was at the mosque, during my first sitting while I was saying (At-tahiyyatu lillahi was-salawatu wat-tayyibat, as-salamu 'alaika ayyuhan-Nabiyyul Arabiy) Allah compliments, prayers and pure words are due to Allah. Peace be upon you, O Arabian Prophet and I bear witness that there is no God but Allah, I did not stop due to inattentiveness and continued to recite the complete prayer of Ibrahim (durud). Because of hastiness I did not realize my mistake but when I stood up for the third rak’at I forgot to recite surah Fatiha bearing in mind that it was a congregational prayer in the mosque. The question is what is the ruling on my prayer?
?أخطأت في التشهد ولم أقرأ الفاتحة فما حكم صلاتي