عَنْ مُعَاوِيَةَ بْنِ قُرَّةَ عَنْ أَبِيهِ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَجُلًا قَالَ يَا رَسُولَ اللَّهِ إِنِّي لَأَذْبَحُ الشَّاةَ وَأَنَا أَرْحَمُهَا أَوْ قَالَ إِنِّي لَأَرْحَمُ الشَّاةَ أَنْ أَذْبَحَهَا فَقَالَ وَالشَّاةُ إِنْ رَحِمْتَهَا رَحِمَكَ اللَّهُ
It is narrated from Sayyiduna Qurrah (may Allah be pleased with him) that a man said: O Messenger of Allah! I slaughter a goat and I feel pity for it as I am slaughtering it. The Prophet (peace and blessings be upon him) said: If you show mercy to the goat, Allah will show mercy to you.