Hadith on Charity: Whoever asks by Allah, give him

Ibn Umar reported: The Messenger of Allah, peace and blessings be upon him, said, “Whoever seeks refuge in the name of Allah, grant him refuge. Whoever asks you in the name of Allah, give him. Whoever invites you, answer him. Whoever does something good for you, reciprocate him. If you do not have anything to reciprocate, supplicate for him until he sees that you have repaid him.”

Source: Sunan Abī Dāwūd 1672

Grade: Sahih (authentic) according to Al-Nawawi

عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَسَلَّمَ مَنِ اسْتَعَاذَ بِاللَّهِ فَأَعِيذُوهُ وَمَنْ سَأَلَ بِاللَّهِ فَأَعْطُوهُ وَمَنْ دَعَاكُمْ فَأَجِيبُوهُ وَمَنْ صَنَعَ إِلَيْكُمْ مَعْرُوفًا فَكَافِئُوهُ فَإِنْ لَمْ تَجِدُوا مَا تُكَافِئُونَهُ فَادْعُوا لَهُ حَتَّى تَرَوْا أَنَّكُمْ قَدْ كَافَأْتُمُوهُ

1672 سنن أبي داود كتاب الزكاة باب عطية من سأل بالله

2566 المحدث النووي خلاصة حكم المحدث صحيح في المجموع