'Umarbin Khattab said:
"There are three things, if the Messenger ofAllah (ﷺ) had clarified them, that would have been dearer to methanthe world and everything in it: a person who leaves behind noheir,usury, and the caliphate." (IT)
English reference (IT): Vol. 4, Book 23, Hadith 2727 (IT)
Arabic reference (IT): Book 23, Hadith 2831 (IT)