(5) باب إِذَا أَدْرَكَ الإِمَامَ وَلَمْ يُصَلِّ رَكْعَتَىِ الْفَجْرِ
Narrated Abu Hurairah:
The Messenger of Allah (ﷺ)as saying: When the iqamah is pronounced for prayer, no prayer is valid except the obligatory prayer. (JA)
Reference (JA): Sunan Abi Dawud 1266 (JA)
In-book reference (JA): Book 5, Hadith 17 (JA)
English translation (JA): Book 5, Hadith 1261 (JA)