It was narrated that Ibn 'Abbas said: "The Prophet (ﷺ) used to pray two rak'ahs of Fajr when he heard the Adhan and he made them brief"
SahihSahihSahihBook 20 · Hadith 185
سنن النسائي
It was narrated that Ibn 'Abbas said: "The Prophet (ﷺ) used to pray two rak'ahs of Fajr when he heard the Adhan and he made them brief"