Sunan an-Nasa'i 3680

أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، عَنْ عَبْدِ الْوَهَّابِ، قَالَ حَدَّثَنَا دَاوُدُ، عَنْ عَامِرٍ، عَنِ النُّعْمَانِ، أَنَّ أَبَاهُ، أَتَى بِهِ النَّبِيَّ صلى الله عليه وسلم يُشْهِدُ عَلَى نُحْلٍ نَحَلَهُ إِيَّاهُ ‏.‏ فَقَالَ ‏"‏ أَكُلَّ وَلَدِكَ نَحَلْتَ مِثْلَ مَا نَحَلْتَهُ ‏"‏ ‏.‏ قَالَ لاَ ‏.‏ قَالَ ‏"‏ فَلاَ أَشْهَدُ عَلَى شَىْءٍ أَلَيْسَ يَسُرُّكَ أَنْ يَكُونُوا إِلَيْكَ فِي الْبِرِّ سَوَاءً ‏"‏ ‏.‏ قَالَ بَلَى ‏.‏ قَالَ ‏"‏ فَلاَ إِذًا ‏"‏ ‏.‏

It was narrated from An-Nu'man that his father brought him to the Prophet to bear witness to a present that he gave to him. He said:"Have you given all your children a present like that which you have given to him?" He said: "No." He said: "I will not bear witness to anything. Will it not please you if they were all to treat you with equal respect?" He said: "Of course." He said: "Then no (I will not do it)

Reference

Sunan an-Nasa'i 3680

In-book

Book 31, Hadith 9