Shaykh Ibn Uthaymeen was asked:

Question:

“A man missed the fajr prayer with the congregation. Does he pray the Raatibah [the Sunnah] or the obligation knowing that the congregation has left?”

Answer:

“He precedes the Raatibah over the obligation because the Sunnah of fajr is before the obligation. Even if the congregants have left the masjid” End translation. [Majmoo’ al-Fatawa wa Rasaail question no. 868]

Translated by

Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan