Whoever draws his sword and then puts it down, his blood may be shed with impunity

It is narrated from Sayyiduna Abdullah bin al-Zubayr (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever draws his sword (for rebellion or attack) and then strikes with it, his blood is forfeit (that is, no retaliation or blood money will be claimed for him)."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "How will you be at that time - or: a time is about to come - when people will be thoroughly sifted (through trials) and only the dregs of people will remain, whose covenants and trusts will have become corrupted, and they will differ among themselves and become like this," and he (peace and blessings be upon him) showed it by interlacing the fingers of his two hands. The Companions said: O Messenger of Allah, what is the ruling for us at that time? He (peace and blessings be upon him) said: "Take what you recognize (that is, what is known to be right and sound) and leave what you disapprove of (that is, what is objectionable and wrong), and attend to the affairs of your own particular people (your close ones, or your particular religious affairs), and leave the affair of the common people (with its crowds and trials)."
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it with this wording. [Beginning of the Book of Marriage]