Sunan Abi Dawud 4917
سنن أبي داود#4917SahihAbu Hurairah reported the Messenger of Allah (May peace be upon him) as saying:Avoid suspicion for suspicion is the most lying form of talk. Do not be inquisitive about one another, or spy on one another
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (6066) Sahih Muslim (2563)
In-book reference: 43:145