"The Zakah collector of the prophet came to us, and I went to him, sat with him, and heard him say: In my contract it says that we should not take any sucking young, nor combine what is separate, nor separate what is combined.' A man brought a she-camel with a big hump to him and said: 'Take it, but he refused." (Daif) (Using translation from Nasāʾī 2457)   

أَتَانَا مُصَدِّقُ النَّبِيِّ ﷺ قَالَ فَجَلَسْتُ إِلَيْهِ فَسَمِعْتُهُ وَهُوَ يَقُولُ إِنَّ فِي عَهْدِي أَنْ لَا آخُذَ مِنْ رَاضِعِ لَبَنٍ وَلَا يُجْمَعُ بَيْنَ مُتَفَرِّقٍ وَلَا يُفَرَّقُ بَيْنَ مُجْتَمِعٍ وَأَتَاهُ رَجُلٌ بِنَاقَةٍ كَوْمَاءَ فَقَالَ خُذْهَا فَأَبَى أَنْ يَأْخُذَهَا