"The Messenger of Allah said: 'Whoever conceals knowledge which Allah has made beneficial for mankind's affairs of religion, Allah will bridle him with reins of fire on the Day of Resurrection."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ كَتَمَ عِلْمًا مِمَّا يَنْفَعُ اللَّهُ بِهِ فِي أَمْرِ النَّاسِ فِي الدِّينِ أَلْجَمَهُ اللَّهُ يَوْمَ الْقِيَامَةِ بِلِجَامٍ مِنَ النَّارِ