The Prophet (ﷺ) said: He who is asked something he knows and conceals it will have a bridle of fire put on him on the Day of Resurrection.
Sunan Abi Dawud Book 26, Hadith 18
← Previous Hadith The Prophet (ﷺ) said: If anyone is given a legal decision ignorantly, the sin rests on the one who gave it. Sulayman al-Mahri added in his version: If anyone advises his brother, knowing that guidance lies in another direction, he has deceived him. These are the wordings of Sulayman.

Sunan Abi Dawud Book 26, Hadith 17 Next Hadith → The Prophet (ﷺ) said: You hear (from me), and others will hear from you; and people will hear from them who heard from you.

Sunan Abi Dawud Book 26, Hadith 19