وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنِ اسْتَعَاذَ مِنْكُمْ بِاللَّهِ فَأَعِيذُوهُ وَمَنْ سَأَلَ بِاللَّهِ فَأَعْطُوهُ وَمَنْ دَعَاكُمْ فَأَجِيبُوهُ وَمَنْ صَنَعَ إِلَيْكُمْ مَعْرُوفًا فَكَافِئُوهُ فَإِنْ لَمْ تَجِدُوا مَا تُكَافِئُوهُ فَادْعُوا لَهُ حَتَّى تُرَوْا أَنْ قَدْ كَافَأْتُمُوهُ» . رَوَاهُ أَحْمَدُ وَأَبُو دَاوُد وَالنَّسَائِيّ

Ibn ‘Umar reported God’s messenger as saying, “If anyone seeks protection in God’s name grant him protection; if anyone begs in God’s name give him something; if anyone gives you an invitation accept it; and if anyone does you a kindness recompense him, but if you have not the means to do so pray for him until you feel that you have recompensed him.” Ahmad, Abu Dawud and Nasa’i transmitted it.