(a) Abdullah bin Ma'qil says: Sayyiduna Ali (may Allah be pleased with him) recited qunut in the Fajr prayer.
(b) This is authentically and famously established from Sayyiduna Ali (may Allah be pleased with him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3115