(a) The eminent Successor Sa'id bin Jubayr (may Allah have mercy on him) narrates from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that reciting the qunut in the morning prayer is an innovation.
This is not authentic; Abu Layla al-Kufi is matruk (abandoned).
(b) Whereas we have already mentioned in the previous pages the narration of Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that he recited the qunut in the morning prayer.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 3159