Sahih Muslim Book 45, Hadith 109
This hadith has been narrated on the authority of Zaid b. Aslam with the same chain of transmitters.
I heard you cursing your servant during the night when you called him, and she said: I heard Abu Darda' as saying that Allah's Messenger (ﷺ) said: The invoker of curse would neither be intercessor nor witness on the Day of Resurrection.
I heard Allah's Messenger (ﷺ) as saying: The invoker of curse would neither be witness nor intercessor on the Day of Resurrection.