ذِكْرُ الزَّجْرِ عَنْ تَرْكِ الْمَرْءِ مَا اعْتَادَ مِنْ تَهَجُّدِهِ بِاللَّيْلِ
[Machine] The Messenger of Allah ﷺ said: "O Abdullah ibn Amr, do not be like so-and-so, who used to stand in prayer at night and then left it." Abu Hatim said: "In this hadith is evidence for the permissibility of a person speaking behind someone's back if it is something that when the person hears it, they would be cautious or correct their behavior without denigrating the person being talked about in what was mentioned."
قَالَ رَسُولُ اللَّهِ ﷺ « يَا عَبْدَ اللَّهِ بْنَ عَمْرٍو لَا تَكُنْ مِثْلَ فُلَانٍ كَانَ يَقُومُ اللَّيْلَ فَتَرَكَ قِيَامَ اللَّيْلِ» قَالَ أَبُو حَاتِمٍ ؓ «فِي هَذَا الْخَبَرِ دَلِيلٌ عَلَى إِبَاحَةِ قَوْلِ الْإِنْسَانِ بِظَهْرِ الْغَيْبِ فِي الْإِنْسَانِ مَا إِذَا سَمِعَهُ اغْتَمَّ بِهِ إِذَا أَرَادَ هَذَا الْقَائِلُ بِهِ إِنْبَاهَ غَيْرِهِ دُونَ الْقَدْحِ فِي هَذَا الَّذِي قَالَ فِيهِ مَا قَالَ»