his sin, purify his heart, and safeguard his chastity.” Thereafter, the young man no longer gave any thought to such matters.

This is an authentic chain of transmission; all its narrators are trustworthy and are among the narrators of the Sahih collections.

371 — “Do not call a hypocrite ‘our master,’ for if he is your master, you will have angered your Lord, Mighty and Majestic.”

Recorded by Abu Dawud (2/311), al-Bukhari in al-Adab al-Mufrad (112), Ahmad (5/346–347), Ibn al-Sunni in Amal al-Yawm wa al-Laylah (385), al-Bayhaqi in Shu'ab al-Iman (2/58/2), and Nu'aym ibn Hammad in Zawa'id al-Zuhd (186), through Mu'adh ibn Hisham, who said: My father narrated to us, from Qatadah, from Abdullah ibn Buraydah, from his father, attributing it to the Prophet.

This is an authentic chain meeting the conditions of al-Bukhari and Muslim. Al-Mundhiri said (4/21): “It was recorded by Abu Dawud and al-Nasa'i with an authentic chain of transmission.”

I say: I did not find it in al-Nasa'i, nor did al-Nabulsi attribute it to him in al-Dhakha'ir (1/122). It apparently occurs in his Sunan al-Kubra.

The hadith was also narrated by Uqbah ibn Abdullah al-Asamm, from Abdullah ibn Buraydah, with the wording: “If a man says to a hypocrite, ‘O master,’ he has angered his Lord, Mighty and Majestic.”

Recorded by Abu Nu'aym in Akhbar Isbahan (2/198), al-Hakim (4/311), and al-Khatib (5/454). Al-Hakim said: “Its chain of transmission is authentic.”