Y'aqub bin Ishaq bin Zayd يعقوب بن إسحاق بن زيد · The Chapters on Jihad

“The affairs of the Children of Israel were administered by their Prophets. Every time a Prophet left, he was followed by another, but there will be no Prophet among you after I am gone.” They said: “What will happen, O Messenger of Allah?” He said: “There will be caliphs and there will be many of them.” They said: “What should we do?” He said: “Fulfill your pledge to the first one, then the one who comes after him, and do…