sincerity (niyyah) in worship

وَمَآ ءَاتَيْتُم مِّن رِّبًا لِّيَرْبُوَا۟ فِىٓ أَمْوَٰلِ ٱلنَّاسِ فَلَا يَرْبُوا۟ عِندَ ٱللَّهِ ۖ وَمَآ ءَاتَيْتُم مِّن زَكَوٰةٍ تُرِيدُونَ وَجْهَ ٱللَّهِ فَأُو۟لَـٰٓئِكَ هُمُ ٱلْمُضْعِفُونَ

And whatever you give for interest [i.e., advantage] to increase within the wealth of people will not increase with Allāh. But what you give in zakāh, desiring the face [i.e., approval] of Allāh - those are the multipliers.