بُلُوغُ الْمَرَامِ
Bulugh al-Maram 1383
Oaths and Vows
وَعَنْ أُسَامَةَ بْنِ زَيْدٍ رَضِيَ اَللَّهُ عَنْهُمَا قَالَ: قَالَ رَسُولُ اَللَّهِ - صلى الله عليه وسلم -{ مَنْ صُنِعَ إِلَيْهِ مَعْرُوفٌ, فَقَالَ لِفَاعِلِهِ: جَزَاكِ اَللَّهُ خَيْراً. فَقَدْ أَبْلَغَ فِي اَلثَّنَاءِ } أَخْرَجَهُ اَلتِّرْمِذِيُّ, وَصَحَّحَهُ اِبْنُ حِبَّانَ [1] .
Narrated Usama bin Zaid (RA): Allah's Messenger (ﷺ) said. "If one is done a kindness and [expresses his gratitude] to his benefactor by saying 'May Allah give you a good reward', he has fully expressed his appreciation." [at-Tirmidhi reported it, and Ibn Hibban graded it Sahih (authentic)].
Bulugh al-Maram, 1383