Nahj al-Balagha (Peak of Eloquence)

210. Amīr al-mu’minīn, peace be upon him, said: Fear Allāh like the one who prepares himself after extracting himself (from worldly affairs) and after getting ready in this way makes effort; then he acts quickly during the period of this life, hastens in view of the dangers (of falling into error) and has his eye on proceeding towards the goal, on the end of his journey and on the place of his (eventual) return.