Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: Once the Prophet (peace and blessings be upon him) passed by some people who had hunted a doe and had tied it to a tent pole. The doe said: "O Messenger of Allah! I have given birth; I have two little fawns. Grant me permission to go and suckle them, then I will come back." The Prophet (peace and blessings be upon him) said: "Release her, so that she may go to her young and suckle them; then she will come back to you." They said: "O Messenger of Allah, who will be responsible for that?" The Prophet (peace and blessings be upon him) said: "I will." They released her and she went away; she suckled them, then came back to those people, and they tied her up again. The Prophet (peace and blessings be upon him) said: "Will you sell her?" They said: "O Messenger of Allah! She is yours." Then they released her, and she went away.
Al-Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains Salih al-Murri, and he is da'if (weak).
Sayyidah Umm Salamah (may Allah be pleased with her) narrates: The Prophet (peace and blessings be upon him) was in the desert when someone called out to him: "O Messenger of Allah!" The Prophet (peace and blessings be upon him) turned around but did not see anyone. Then he turned again, and there was a doe tied up. She said: "O Messenger of Allah! Come near me." The Prophet (peace and blessings be upon him) went near her and asked: "What do you need?" She said: "I have two young ones in this mountain. Set me free so that I may go and suckle them, then I will come back to you." The Prophet (peace and blessings be upon him) asked: "Will you do so?" She said: "May Allah Almighty punish me with the punishment of an extortionate toll-collector if I do not." The Prophet (peace and blessings be upon him) untied her; she went away, suckled her young, then came back, and the Prophet (peace and blessings be upon him) tied her up again. Meanwhile the bedouin came and said: "O Messenger of Allah! Do you need anything?" The Prophet (peace and blessings be upon him) said: "Yes! Release her!" The bedouin released her, and she went off saying: "I bear witness that there is no god but Allah Almighty and that you are the Messenger of Allah."
Al-Tabarani recorded it. Its chain contains Aghlab bin Tamim, and he is da'if (weak).