"There is no person who kills a small bird or anything larger for no just reason, but Allah, the Mighty and Sublime, will ask him about it." It was said: "O Messenger of Allah, what does just reason;' mean?" Her said: "That you slaughter it and eat it, and do not cut off its head and throw it aside."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَا مِنْ إِنْسَانٍ قَتَلَ عُصْفُورًا فَمَا فَوْقَهَا بِغَيْرِ حَقِّهَا إِلاَّ سَأَلَهُ اللَّهُ ﷻ عَنْهَا قِيلَ يَا رَسُولَ اللَّهِ وَمَا حَقُّهَا قَالَ يَذْبَحُهَا فَيَأْكُلُهَا وَلاَ يَقْطَعُ رَأْسَهَا يَرْمِي بِهَا