He said: Abul Hasan Muhammad b. al-Muzaffar reported to me from Muhammad b. Jurair, who reported from Ahmad b. Ismail who reported from Abdul al-Razzaq b. Hammam, who reported from Mu'mar, from al-Zuhari, from Ubaidullah b. Abdullah b. Utbah, from Abdullah b. Abbas, may ALLAH (SWT) bless him with mercy, who said:
The PROPHET (SAWW), peace be upon him and his progeny, looked at ALI B.ABI TALIB (ASWS) and said: "(Here is) the master herein, and the master hereinafter."
(Ref: Al Aamali Shaikh Mufeed: The Second Assembly : Hadees No: 8)