Hadith 1856
It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with both of them) that the Noble Prophet (peace and blessings of Allah be upon him) said: "Whoever, without necessity, misses three Fridays, Allah Almighty sets a seal upon his heart."
Hadith 1857
Sayyiduna Abu Ju'd Damri (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Whoever leaves three Jumu'ahs without a valid Shari'ah excuse..." In Ibn Idris's narration, it is: "then a seal is set upon his heart." And in the narration of Waki', it is: "then that person is a hypocrite."