وَلِأَبِي دَاوُدَ: «ثُمَّ اِقْرَأْ بِأُمِّ اَلْقُرْآنِ وَبِمَا شَاءَ اَللَّهُ» 11 صحيح
And Abu Dawud has “Then read the Ummul-Qur’an (i.e. Surah al-Fatiha) and what ever Allah wishes”.
Bulugh al-Maram 321, Book 2, The Book of Prayer, Hadith 142. 1 min read