The Messenger of Allah ﷺ said: "Whoever misses jumu'ah three times with no cogent excuse, Allah (SWT) will place a seal on his heart."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ تَرَكَ الْجُمُعَةَ ثَلاَثًا مِنْ غَيْرِ ضَرُورَةٍ طَبَعَ اللَّهُ عَلَى قَلْبِهِ