Sayyiduna al-Miswar bin Makhramah and Marwan (may Allah be pleased with them both) narrate: Surah al-Fath was revealed between Makkah and Madinah concerning the affair of Hudaybiyah, from its beginning to its end.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17152