Nahjul Balagha Will 23

Made shortly before his martyrdom when he had been fatally wounded by a blow from the sword of (Abd ar.Rahman) Ibn Muljam (the curse of Allah be upon him).

I enjoin upon you as my dying wish not to regard anything by way of partner with Allah, not to disregard the sunnah of Muhammad (pbuh), establish these two pillars and light these two lamps. You will then be free from evil. Yesterday I was your companion and today I am a lesson for you, while tomorrow I shall be leaving you. If I survive I shall be the master of my blood (to avenge or not to avenge it), and if I die then death is a promised event. If I forgive, it is for me a means of nearness (to Allah) and for you a good act. Therefore, do forgive.

What! Love you not that Allah should forgive you? (Quran, 24:22)

By Allah, this sudden death is not an event that I dislike, nor is it an accident that I hate. I am just like a night traveller who reaches the spring (in the morning) or like or seeker who secures (his aim):

And whatever is with Allah is the best for the righteous ones. (Quran, 3:198)