Sunan Ibn Majah 3
سنن ابن ماجه#3SahihAbu Hurairah narrated that:The Prophet said: "Whoever obeys me, obeys Allah; and whoever disobeys me, disobeys Allah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih