Ibn Dihyah Al-Kalbī [D.633H] said:
❝The people of At-Ta’dīl Wa At-Tajrīh [i.e. the ‘Ulamā of Hadīth] have said: ‘There isn’t a single Hadīth about the 15th night of Sha’bān that is Sahīh [authentic]’.❞
[Mā Wud’a Wa Istibān Fī Fadā`il Sharh Sha’bān, (Page: 43) | Translated By Musa Shaleem Mohammed]