(a) Samurah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Attend the Friday prayer and sit close to the imam, for when a man stays away from Friday, Allah leaves him behind from Paradise, even if he is one of its people."
(b) In the narration of Ibn Shahriyar: "He lags behind from Friday, so Allah will hold him back from Paradise, even if he is one of its people."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5931