It was narrated from wa'il bin Hujr that:

the Prophet sent a collector and he came to a man who brought him a slim, recently-weaned camel. The Prophet ﷺ said: "We sent to Zakah collector of Allah and His Messenger, and so-and-so gave him a slim, recently-weaned camel. O Allah, do not bless him nor his camels!" News of that reached the man, so he came with a beautiful she-camel and said: "I repent to Allah and to His Prophet. " The Prophet ﷺ said: "O Allah, bless him and his camels!"

أَخْبَرَنَا هَارُونُ بْنُ زَيْدِ بْنِ يَزِيدَ، - يَعْنِي ابْنَ أَبِي الزَّرْقَاءِ - قَالَ حَدَّثَنَا أَبِي قَالَ، حَدَّثَنَا سُفْيَانُ، عَنْ عَاصِمِ بْنِ كُلَيْبٍ، عَنْ أَبِيهِ، عَنْ وَائِلِ بْنِ حُجْرٍ، أَنَّ النَّبِيَّ ﷺ بَعَثَ سَاعِيًا فَأَتَى رَجُلاً فَأَتَاهُ فَصِيلاً مَخْلُولاً فَقَالَ النَّبِيُّ ﷺ " بَعَثْنَا مُصَدِّقَ اللَّهِ وَرَسُولِهِ وَإِنَّ فُلاَنًا أَعْطَاهُ فَصِيلاً مَخْلُولاً اللَّهُمَّ لاَ تُبَارِكْ فِيهِ وَلاَ فِي إِبِلِهِ " . فَبَلَغَ ذَلِكَ الرَّجُلَ فَجَاءَ بِنَاقَةٍ حَسْنَاءَ فَقَالَ أَتُوبُ إِلَى اللَّهِ عَزَّ وَجَلَّ وَإِلَى نَبِيِّهِ ﷺ . فَقَالَ النَّبِيُّ ﷺ " اللَّهُمَّ بَارِكْ فِيهِ وَفِي إِبِلِهِ " .