Abu al-Darda said: I heard the Messenger of Allah ﷺ say: Men given to cursing will not be witnesses or intercessors.
Explanation & Benefits
Shaykh Umar Farooq Saeedi
Benefits and Issues:
How great a deprivation it is that a servant should be deprived of this virtue.
Whereas the people of faith will be able to intercede for their loved ones and others, and will also serve as witnesses for them.
Source: Sunan Abu Dawood – Commentary by Shaykh Umar Farooq Saeedi, Page: 4907