Sunan an-Nasa'i 1766
سنن النسائي#1766SahihIbn 'Umar said:"Hafsah told me that The Messenger of Allah (ﷺ) used to pray two brief rak'ahs between the call (the Adhan) and the Iqamah for Fajr prayer
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 20:169