It is narrated from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Allah Almighty turns towards His creation on the fifteenth night of Sha'ban, and He forgives all His creation except one who associates partners with Allah or one who harbours rancour."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Imam al-Awza'i and Ibn Thawban (may Allah have mercy on them both) except Abu Khulayd Utbah bin Hammad (may Allah have mercy on him), and Hisham bin Khalid (may Allah have mercy on him) is alone in narrating it from Imam al-Awza'i (may Allah have mercy on him)."
Hadith Referenceالمعجم الأوسط / باب الميم / 6776
Hadith Gradingمحدثین:غير محفوظ
Hadith Takhrij«قال الدارقطني: كلاهما غير محفوظ «العلل الواردة في الأحاديث النبوية، ج 6، ص 51»» «أخرجه ابن حبان فى «صحيحه» برقم: 5665، والطبراني فى «الكبير» برقم: 215»