Musnad Ahmad Hadith 3112

He was at the Black Stone and had a crooked stick with him, with which he would touch the stone and then kiss it. And he said. The Messenger of Allah (ﷺ) said: “O you who believe! Fear Allah (by doing all that He has ordered and by abstaining from all that He has forbidden) as He should be feared. (Obey Him be thankful to Him, and remember Him always.) and die not except in a state of Islam (as Muslims (with complete submission to Allah))" (Al-'Imran 3:102]. (Then he said:) “If a drop of Zaqqoom were to be dropped on the earth, it would make the lives of the people of this world bitter, so how about those whose food it is and they have no food other than it?”