Who has done this? Verily Messenger of Allah ﷺ has invoked curse upon him who does this.
ابْنُ عُمَرَ مَنْ فَعَلَ هَذَا إِنَّ رَسُولَ اللَّهِ ﷺ لَعَنَ مَنْ فَعَلَ هَذَا
While I was with Ibn ʿUmar, we passed by a group of young men who had tied a hen and started shooting at it. When they saw Ibn ʿUmar, they dispersed, leaving it. On that Ibn ʿUmar said, "Who has done this? The Prophet ﷺ cursed the one who did so." Narrated Ibn ʿUmar: The Prophet ﷺ cursed the one who did Muthla to an animal (i e., cut its limbs or some other part of its body while it is still alive).
وَقَالَ ابْنُ عُمَرَ مَنْ فَعَلَ هَذَا إِنَّ النَّبِيَّ ﷺ لَعَنَ مَنْ فَعَلَ هَذَا