Sunan Abi Dawud

A’isha said :A man asked permission to see the Prophet (ﷺ), and he said: He is a bad son of the tribe, or: He is a bad member of the tribe. He then said : Give him permission. Then when he entered, he spoke to him leniently. `A’isha asked : Apostle of Allah! You spoke to him leniently while you said about him what you said! He replied: The one who will have the worst position in Allah’s estimation on the Day of Resurrection will be the one whom people left alone for fear of his ribaldry