[Machine] The Messenger of Allah ﷺ took my hand one day and said, "O Mu'adh, by Allah, I truly love you." So, I replied, "By my father and mother, O Messenger of Allah, I swear that I love you too." He then advised me, saying, "O Mu'adh, I advise you not to leave after every prayer without saying, 'O Allah, help me in remembering You, in thanking You, and in worshipping You excellently.' And Mu'adh advised al-Sun abi al-Shibihi, and al-Sunabihi advised Abu Abdur-Rahman al-Hubuli, and he advised Uqbah ibn Muslim." This is an authentic narration, but it has not been mentioned in Sahih (al-Bukhari or Muslim).
أَخَذَ رَسُولُ اللَّهِ ﷺ بِيَدِي يَوْمًا ثُمَّ قَالَ «يَا مُعَاذُ وَاللَّهِ أَنِّي لَأُحِبُّكَ» فَقُلْتُ لَهُ بِأَبِي وَأُمِّي يَا رَسُولَ اللَّهِ وَأَنَا وَاللَّهِ أُحَبُّكَ فَقَالَ وَأُوصِيكَ يَا مُعَاذُ لَا تَدَعَنَّ فِي دُبُرِ كُلِّ صَلَاةٍ أَنْ تَقُولَ اللَّهُمَّ أَعِنِّي عَلَى ذِكْرِكَ وَشُكْرِكَ وَحُسْنِ عِبَادَتِكَ «وَأَوْصَى بِذَلِكَ مُعَاذٌ الصُّنَابِحِيَّ وَأَوْصَى الصُّنَابِحِيُّ أَبَا عَبْدِ الرَّحْمَنِ الْحُبُلِيَّ وَأَوْصَى أَبُو عَبْدِ الرَّحْمَنِ عُقْبَةَ بْنَ مُسْلِمٍ» صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ صحيح