Sunan an-Nasa'i 1370
سنن النسائي#1370SahihIt was narrated from Al-Hakam bin Mina' that:He heard Ibn Abbas and Ibn Umar narrate that while he was on the minbar, the Messenger of Allah (ﷺ) said: "People should stop neglecting Jumu'ah or Allah will place a seal on their hearts and they will be deemed as being among the negligent
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 14:6