Sayyiduna ‘Ali ibn Abi Talib, Karam’Allahu Wajhahu, said:
“Narrate to people what they can understand; do you want Allah and His Messenger, Sall’Allahu Alayhi wa Sallam, to be disbelieved in?”
– This is recorded in the Sahih of Imam Bukhari, in the Chapter about a person preferring some people with certain knowledge to the exclusion of others.
Hafiz Ibn Hajr said in his explanation of Imam Bukhari’s Sahih = Fath Al-Bari,
“In this narration there is evidence that ambiguous knowledge should not be mentioned among the general public.”