حَدَّثَنَا سُرَيْجٌ حَدَّثَنَا أَبُو عَوَانَةَ عَنِ الْأَعْمَشِ عَنْ مُجَاهِدٍ عَنِ ابْنِ عُمَرَ أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ سَأَلَكُمْ بِاللَّهِ فَأَعْطُوهُ وَمَنْ اسْتَعَاذَكُمْ بِاللَّهِ فَأَعِيذُوهُ وَمَنْ أَتَى إِلَيْكُمْ مَعْرُوفًا فَكَافِئُوهُ فَإِنْ لَمْ تَجِدُوا مَا تُكَافِئُوهُ فَادْعُوا لَهُ حَتَّى تَعْلَمُوا أَنَّكُمْ قَدْ كَافَأْتُمُوهُ وَمَنْ اسْتَجَارَكُمْ فَأَجِيرُوهُ
مسند امام احمد بن حنبل · Hadith 5743
It was narrated from Ibn 'Unar that the Prophet (PBUH) said: "Whoever asks of you in the name of Allah, give to him. Whoever seeks refuge in the name of Allah, grant him refuge. Whoever does you a favour, reward him, and if you do not have anything with which to reward him then pray for him until you think you have done enough to reward him. And whoever asks for your protection, grant him your protection."
Sanad
حَدَّثَنَا سُرَيْجٌ حَدَّثَنَا أَبُو عَوَانَةَ عَنِ الْأَعْمَشِ عَنْ مُجَاهِدٍ عَنِ ابْنِ عُمَرَ