حَدَّثَنَا سَعِيدُ بْنُ عُفَيْرٍ قَالَ‏:‏ حَدَّثَنِي يَحْيَى بْنُ أَيُّوبَ، عَنْ عُمَارَةَ بْنِ غَزِيَّةَ، عَنْ شُرَحْبِيلَ مَوْلَى الأَنْصَارِ، عَنْ جَابِرِ بْنِ عَبْدِ اللهِ الأَنْصَارِيِّ قَالَ‏:‏ قَالَ النَّبِيُّ صلى الله عليه وسلم‏:‏ مَنْ صُنِعَ إِلَيْهِ مَعْرُوفٌ فَلْيُجْزِئْهُ، فَإِنْ لَمْ يَجِدْ مَا يُجْزِئُهُ فَلْيُثْنِ عَلَيْهِ، فَإِنَّهُ إِذَا أَثْنَى فَقَدْ شَكَرَهُ، وَإِنْ كَتَمَهُ فَقَدْ كَفَرَهُ، وَمَنْ تَحَلَّى بِمَا لَمْ يُعْطَ، فَكَأَنَّمَا لَبِسَ ثَوْبَيْ زُورٍ‏.‏

Ibn 'Umar reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Anyone who seeks refuge in Allah will find refuge with Him. Anyone who asks from Allah will be receive. Anyone who does a favour should repay it. If you do not find anything, then make supplication for the doer of the favour so that he knows that you have repaid him."