Al-Baqarah - 207

﴿وَمِنَ النَّاسِ مَنْ يَشْرِي نَفْسَهُ ابْتِغَاءَ مَرْضَاتِ اللَّهِ ۗ وَاللَّهُ رَءُوفٌ بِالْعِبَادِ﴾

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207. And of mankind is he who would sell himself, seeking the Pleasure of Allâh. And Allâh is full of Kindness to (His) slaves.