Sunan Ibn Majah 2818
سنن ابن ماجه#2818HasanIt was narrated from Ibn ‘Abbas that the flag of the Messenger of Allah (ﷺ) was black, and his standard was white
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniHasan
Muhammad Fouad Abd al-BaqiHasan
Zubair Ali ZaiHasan
In-book reference: 24:66