Below are mentioned Three so-called Hadith.Though there meanings are good but not established as valid sayings Prophet Muhammad s.a.w.w
(1) City of Knowledge and Ali a.s is Gate (2) Seek knowledge from the cradle to the grave (3) seek knowledge even if you have to go as far as china
In reference to the following Hadith:
“I am the city of knowledge and Ali is its gate.”
It was related by al-Hakim, at-Tabarani and others. It was also related by at-Tirmidhi with the wording, “I am the House of Wisdom, and Ali is its Door.”
Daraqutni labeled the Hadith as mudtarib (shaky), both in isnad and text.
Tirmidhi labeled it is ghareeb (weak) and munkar (rejected).
Bukhari said that the Hadith has no sahih narration and declared it un-acknowledgeable.
Qurtubi said about this Hadith in al-Jame’ li Ahkam al-Quran: “This Hadith is Batil (false)!”
Ibn Maeen said that the Hadith is a baseless lie.
Dhahabi considered it a forgery and included it in his book on forged Hadiths.
Al-Hakim declared that it is weak. Amongst others who dismissed the Hadith are Abu Zur`ah, Abu Hatim, Yahya bin Saeed, etc.
Albani declared the Hadith to be Mawdoo (fabricated).
sources:
The Hadith (i.e. the city of knowledge…) has been shown/declared to be false/fabricated by the following scholars:
Yahya Bin Ma’een
Source: al Jarh wat-Ta’deel 6/99
Su’alat ibn Junayd #185
Tareekh Baghdad 11/205
Ahmad Bin Hanbal
Source: Tareekh Baghdad 11/49
Ibn Hibban
Source: al Majruheen 2/136
Ibn ’Adi
Source: al Kamel fi ad-Du’afa 1/311 & 316
Al-Daraqutni
Source: Ta’liqat ‘ala al Majruheen 179
Ibn Tahir al-Maqdisi
Source: Dhakhirat al Huffadh 5/2578 - Tadhkirat al Huffadh #136
Ibn Al-Arabi al Maliki
Source: Ahkam al Quran 3/86
Ibn A’sakir
Source: Tareekh Dimashq 45\321
Ibn Al-Jawzi
Source: Al Mawdu’at 2/112-116
Al-Nawawi
Source: Tahdheeb al Asma’ wal-Lughat 1/348
Al-Mizzi
Source: Tahdheeb al Kamal 11/462
Al Dhahabi
Source: Mizan al-I’tidal 1/415 - 1/110
