On the part of your money that is not yours
Described not as generosity but as an existing claim.
وَفِىٓ أَمْوَٰلِهِمْ حَقٌّ لِّلسَّآئِلِ وَٱلْمَحْرُومِ
Wa fī amwālihim ḥaqqun li-s-sā'ili wa-l-maḥrūm.
“And from their properties was [given] the right of the [needy] petitioner and the deprived.”
It is called a right belonging to them, not a favour from you.
Source
The Qur'an · 51:19
Qur'an
- Qur'anic text in the Uthmani script via Quran.com; translation: Saheeh International