(9) باب تَحْرِيمِ الظَّنِّ وَالتَّجَسُّسِ وَالتَّنَافُسِ وَالتَّنَاجُشِ وَنَحْوِهَا
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
Avoid suspicion, for suspicion is the gravest lie in talk and do not be inquisitive about one another and do not spy upon one another and do not feel envy with the other, and nurse no malice, and nurse no aversion and hostility against one another. And be fellow-brothers and servants of Allah.
Reference: Sahih Muslim 2563 a
In-book reference: Book 45, Hadith 35
USC-MSA web (English) reference(deprecated numbering scheme): Book 32, Hadith 6214