Hadith No: 1

Narrated Sa`id bin Jubair:

While I was with Ibn `Umar, we passed by a group of young men who had tied a hen and started shooting at it. When they saw Ibn `Umar, they dispersed, leaving it. On that Ibn `Umar said, "Who has done this? The Prophet (s.a.w.a.) cursed the one who did so."

Narrated Ibn `Umar:

The Prophet (s.a.w.a.) 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).

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Reference: Saheeh al-Bukhari Book 72 Tradition No. 41

Hadith No: 2
Al-Bayhaqi - Sunan al-Kubra - Book of Journeys
Compilation of Chapters on Journeys - Chapter on the Prohibition of Killing Anything that Has a Soul Except by Slaughtering It to Be Eaten
Volume: (9) - Page Number: (148)
18134 - Abu Muhammad Jinah ibn Nathir ibn Jinah narrated to us, saying: Abu al-Qasim Abdel Rahman ibn al-Hasan al-Asdi al-Hamadhani narrated to us, saying: Ibrahim ibn al-Husayn al-Kisai narrated to us, saying: Adam narrated to us, saying: Shu'bah narrated to us, from al-Munhal, who said: I was walking with Sa'id ibn Jubayr, and he said: Abdullah ibn Umar (may Allah be pleased with him) said: "I heard the Messenger of Allah (peace be upon him and his holy progeny) say: 'May Allah curse those who mutilate animals.'"

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Reference: Al-Sunan al-Kubra Book 9