Sunan an-Nasa'i, Volume 4, Book 31, Hadith 3711 (DarusSalam) ⓘ

An-Nu'man bin Bashir Al-Ansari narrated that his mother, the daughter of Rawahah, asked his father to give some of his wealth to her son. He deferred that for a year, then he decided to give it to him. She said: "I will not be pleased until you ask the Messenger of Allah to bear witness." He said: "O Messenger of Allah, the mother of this boy, the daughter of Rawahah, insisted that I give a gift to him." The Messenger of Allah said: "O Bashir, do you have any other children besides this one?" He said: "Yes." The Messenger of Allah said: "Have you given all of them a gift like that which you have given to this son of yours?" He said: "No." The Messenger of Allah said: "Then do not ask me to bear witness, for I will not bear witness to unfairness."

أَخْبَرَنَا مُوسَى بْنُ عَبْدِ الرَّحْمَنِ، قَالَ حَدَّثَنَا أَبُو أُسَامَةَ، قَالَ حَدَّثَنَا أَبُو حَيَّانَ، عَنِ الشَّعْبِيِّ، قَالَ حَدَّثَنِي النُّعْمَانُ بْنُ بَشِيرٍ الأَنْصَارِيُّ، أَنَّ أُمَّهُ ابْنَةَ رَوَاحَةَ، سَأَلَتْ أَبَاهُ بَعْضَ الْمَوْهِبَةِ مِنْ مَالِهِ لاِبْنِهَا فَالْتَوَى بِهَا سَنَةً ثُمَّ بَدَا لَهُ فَوَهَبَهَا لَهُ فَقَالَتْ لاَ أَرْضَى حَتَّى تُشْهِدَ رَسُولَ اللَّهِ صلى الله عليه وسلم ‏.‏ فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ أُمَّ هَذَا ابْنَةَ رَوَاحَةَ قَاتَلَتْنِي عَلَى الَّذِي وَهَبْتُ لَهُ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ يَا بَشِيرُ أَلَكَ وَلَدٌ سِوَى هَذَا ‏"‏ ‏.‏ قَالَ نَعَمْ ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ أَفَكُلُّهُمْ وَهَبْتَ لَهُمْ مِثْلَ الَّذِي وَهَبْتَ لاِبْنِكَ هَذَا ‏"‏ ‏.‏ قَالَ لاَ ‏.‏ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ فَلاَ تُشْهِدْنِي إِذًا فَإِنِّي لاَ أَشْهَدُ عَلَى جَوْرٍ ‏"‏ ‏.‏