أما أنت يا علي فصفيي وأميني.
As for you, o ‘Ali, you are my bosom and trustworthy (friend).
Imam al Nasa’i, al Bazzar, Ibn Abi ‘Asim, and al Tahawi narrate this hadith from ‘Abdul ‘Aziz — from Yazid ibn ‘Abdullah ibn al Had — from Muhammad ibn Nafi’ ibn ‘Ajir — from his father — from ‘Ali who said, “The Messenger of Allah salla Llahu ‘alayhi wa sallam said…”
‘Abdul ‘Aziz’s name is Ibn Muhammad al Darawardi. The hadith masters have a difference of opinion regarding him.
The chain of transmission appears in contradictory form. Imam al Tahawi narrates from Bakr ibn Mudar — from Ibn al Had — from Muhammad ibn Nafi’ ibn ‘Ajir — from ‘Ali ibn Abi Talib radiya Llahu ‘anhu.
Bakr ibn Mudar is more reliable than ‘Abdul ‘Aziz; therefore, his hadith is more authentic. The words in the chain of his transmission “from his father” are dropped. It is, therefore munqati’ (broken) since Muhammad ibn Nafi’ ibn ‘Ajir narrates from his father — from ‘Ali. For that reason, the hadith is da’if (weak).
Al Shajari also narrates it with an unreliable chain of transmission.
 Imam al Nasaʾi: al Sunan al Kubra, hadith no. 8404 and Khasaʾis ‘Ali, hadith no. 73; al Bazzar: Musnad al Bazzar, hadith no. 891; ibn Abi ‘Asim: Kitab al Sunnah, hadith 1330; al Tahawi: Sharh Mushkil al Athar, hadith no. 3083.
 Imam al Tahawi: Sharh Mushkil al Athar, hadith no. 3082.
 A munqati’ (broken) chain of transmission in which a transmitter, usually not in the early part of the isnad, cites a source whom he never actually met. [translator’s note]
 Al Shajari: al Amali, 1/669.