It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that she said: the Messenger of Allah (peace and blessings be upon him) said: "Quraysh continued to hold back (from harming me) until Abu Talib died."
No one narrated this hadith from Hisham bin Urwah (may Allah have mercy on him) except Qays (may Allah have mercy on him), and Abu Bilal (may Allah have mercy on him) is alone in narrating it from him.
Hadith Referenceالمعجم الأوسط / باب الألف / 594
Hadith Gradingمحدثین:إسناده ضعيف لضعف أبي بلال الأشعري
Hadith Takhrij«قال الهيثمي: فيه أبو بلال الأشعري وهو ضعيف «مجمع الزوائد ومنبع الفوائد، ج 6، ص 15»» «أخرجه الحاكم فى «المستدرك» برقم: 4266»