#Blasphemy costs your head

Narrated Hisham ibn Salim

Abu Abd Allah [Imam Ja'far al-Sadiq] was asked about someone who insults the Messenger of Allah (ﷺ). He said: "The person nearest to him should kill him, then the next nearest, before his case is brought before the Imam."

Narrated Muhammad ibn Muslim

Abu Ja'far [Imam Muhammad al-Baqir] said: "A man from Hudhayl used to insult the Messenger of Allah (ﷺ). When word of it reached the Prophet (ﷺ), he said: 'Who will take care of this man?' Two men of the Ansar stood up and said: 'We will, O Messenger of Allah.' They set out until they reached Araba and asked about him. They found him going out to meet his flock. He said: 'Who are you two, and what are your names?' They said to him: 'Are you so-and-so, son of so-and-so?' He said: 'Yes.' So they dismounted and struck off his head." Muhammad ibn Muslim said: I said to Abu Ja'far: "What if a man insulted the Prophet (ﷺ) today: should he be killed?" He said: "If you do not fear for yourself, kill him."

Narrated 'Urwa ibn al-Zubayr

I said to 'Abdullah ibn 'Amr ibn al-'As: "What is the worst you saw Quraysh do to the Messenger of Allah (ﷺ), in the enmity they showed him?" He said: "I was with them when their notables gathered one day in the Hijr and spoke of the Messenger of Allah (ﷺ). They said: 'We have never endured anything like what we have endured from this man: he has called our wise men fools, insulted our fathers, reviled our religion, divided our community and cursed our gods.' While they were saying this, the Messenger of Allah (ﷺ) appeared. He walked up, touched the Corner, then passed by them while circling the House. Each time he passed them, they mocked him with some of his own words. When he passed them the third time, he said: 'Will you listen, O people of Quraysh? By the One in Whose hand is the soul of Muhammad, I have come to you with slaughter.' His words struck them so that every one of them froze, as if a bird had landed on his head. [...]"