Three sound reports, and all three are small moves
Notice what these ask for. None of them asks you to summon a state of mind. Each one is a small physical or verbal move that anyone can do while angry, which is precisely the point, because a state of mind is not available at that moment and a change of posture is.
One is a posture instruction. If you are angry standing, sit. If it has not gone, lie down. One is a single sentence, seeking refuge, offered to a man who was visibly furious. And the third report keeps the detail that the man refused it and asked whether the Prophet, peace be upon him, thought he was mad. That detail is worth keeping, because it is what actually happens when you offer somebody a technique mid surge.
Qur’an and Sunnah
Narrated Sulaiman bin Sarad:Two men abused each other in front of the Prophet (ﷺ) while we were sitting with him. One of the two abused his companion furiously and his face became red. The Prophet (ﷺ) said, "I know a word (sentence) the saying of which will cause him to relax if this man says it. Only if he said, "I seek refuge with Allah from Satan, the outcast.' " So they said to that (furious) man, 'Don't you hear what the Prophet (ﷺ) is saying?" He said, "I am not mad
Sahih al-Bukhari 6115graded sound, sahihaynfull report
Sulaiman b. Surad reported that two persons abused each other in the presence of Allah's Apostle (ﷺ) and one of them fell into a rage and his face became red. Allah's Apostle (ﷺ) saw him and said:I know of a wording; if he were to utter that, he would get out (of the fit of anger) (and the wording is): I seek refuge with Allah from Satan, the accursed. Thereupon, a person went to him who had heard that from Allah's Apostle (ﷺ) and said to him: Do you know what Allah's Messenger (ﷺ) said? He (the Holy Prophet) said: I know of a wording; if he were to say that, (the fit) would be no more (and the words are): I seek refuge with Allah from Satan, the accursed. And the person said to him: Do you find me mad?
Sahih Muslim 2610graded sound, sahihaynfull report
Narrated AbuDharr: The Messenger of Allah (ﷺ) said to us: When one of you becomes angry while standing, he should sit down. If the anger leaves him, well and good; otherwise he should lie down
Sunan Abi Dawud 4782graded sound, albanifull report