بُلُوغُ الْمَرَامِ
Bulugh al-Maram 445
The Book of Prayer
عَنْ عَبْدِ اَللَّهِ بْنِ عُمَرَ, وَأَبِي هُرَيْرَةَ رَضِيَ اَللَّهُ عَنْهُمْ, { أَنَّهُمَا سَمِعَا رَسُولَ اَللَّهِ - صلى الله عليه وسلم -يَقُولُ -عَلَى أَعْوَادِ مِنْبَرِهِ- "لَيَنْتَهِيَنَّ أَقْوَامٌ عَنْ وَدْعِهِمُ اَلْجُمُعَاتِ, أَوْ لَيَخْتِمَنَّ اَللَّهُ عَلَى قُلُوبِهِمْ, ثُمَّ لَيَكُونُنَّ مِنَ اَلْغَافِلِينَ } رَوَاهُ مُسْلِمٌ . [1] .
Narrated 'Abdullah bin 'Umar and Abu Hurairah (RA): They heard Allah's Messenger (ﷺ) say (while standing) upon the planks of his pulpit: "People must cease to neglect the Friday prayers, or else Allah will seal their hearts and then they will be among the unmindful." [Reported by Muslim].
Sunnah.com reference: Book 2, Hadith 360