Sunan Abi Dawud Book 2, Hadith 428
we were commanded to recite Fatihat al-kitab and whatever was convenient (from the Qur’an during the prayer).
As if I am hearing the voice of the prophet (may peace by upon him) who would recite at the morning prayer “Oh, but I call to witness the planets, the stars which rise and set”(surah 81:15-16)
Go out and announce in medina that prayer is not valid but the recitation of the Qur’an even though it might be fatihat al-kitab and something more.