Hafs al-Abli, who said: Abu Bakr ibn Ayyash narrated to us from Abu Husayn, from Abu Salih, from Abu Hurayrah, attributed to the Prophet, with the wording: “When you become angry, remain silent.”
I say: This is a good chain of transmission. Regarding this al-Abli, al-Hafiz said: “Truthful.” Every narrator above him in the chain was used by al-Bukhari. The supporting reports for the remainder of the hadith are well known; thus, the hadith is authentic, if Allah, Most High, wills.
1376 — “If a man becomes angry and says, ‘I seek refuge in Allah,’ his anger subsides.”
Al-Sahmi recorded it in Tarikh Jurjan (p. 252), through Ibn Adi, who recorded it in al-Kamil (297/1), from Ammar ibn Raja, who said: Ahmad ibn Abi Taybah narrated to us from his father, from al-A'mash, from Abu Salih, from Abu Hurayrah, attributed to the Prophet. He said: “It is among the uncommon hadiths narrated by Abu Taybah.”
His name was Isa ibn Sulayman al-Darimi. He was among the scholars and ascetics, as al-Sahmi stated; al-Sahmi also gave him a lengthy biographical notice. Ibn Adi said: “He was a righteous man, and I do not think that he deliberately lied; but perhaps matters became confused for him and he erred. A number of people narrated from him.”
I say: He is therefore one whose hadith may be cited as corroborative evidence, since he is free from serious weakness. Ammar ibn Raja was a trustworthy hadith master, and al-Sahmi likewise included his biography. The remaining narrators are all covered in the biographical work al-Tahdhib. The hadith also has a supporting report from Ibn Masud, attributed to the Prophet, with similar wording. Al-Tabarani and others recorded it. I discussed its chain of transmission in al-Rawd al-Nadir (635) and mentioned other supporting reports there. Taken together, the hadith is authentic.