Narrated Ibn 'Abbas (RA):

Allah's Messenger (ﷺ) used to teach us a supplication to say in the Qunut of the morning prayer. [al-Baihaqi reported it and there is a weakness in its chain of narrators].

وَلِلْبَيْهَقِيِّ عَنْ اِبْنِ عَبَّاسٍ ‏-رَضِيَ اَللَّهُ عَنْهُمَا‏- : { كَانَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-يُعَلِّمُنَا دُعَاءً نَدْعُو بِهِ فِي اَلْقُنُوتِ مِنْ صَلَاةِ اَلصُّبْحِ } وَفِي سَنَدِهِ ضَعْفٌ .‏ [1]‏