Hadith on Jumu’ah: Neglecting Friday prayer leads to hard heart

Ibn Umar reported: The Prophet, peace and blessings be upon him, said while upon his wooden pulpit, “People need to stop neglecting the Friday prayers, lest Allah place a seal over their hearts and then they become heedless.”

Source: Ṣaḥīḥ Muslim 865

Grade: Sahih (authentic) according to Muslim

عن ابن عمر أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ عَلَى أَعْوَادِ لَيَنْتَهِيَنَّ أَقْوَامٌ عَنْ وَدْعِهِمْ الْجُمُعَاتِ أَوْ لَيَخْتِمَنَّ اللَّهُ عَلَى قُلُوبِهِمْ ثُمَّ لَيَكُونُنَّ مِنْ الْغَافِلِينَ

865 صحيح مسلم كتاب الجمعة باب التغليظ في ترك الجمعة