Hadhrat Abu Sa'eed Khudri Radiallahu Anhu reports that a wolf once attacked a goat and took it away. The shepherd however went after it and wrestled it from the wolf.
The wolf then sat down on its tail and said, "Do you not fear Allaah? You snatch away from me the sustenance that Allaah has brought to me!" "How astonishing!" the shepherd exclaimed, "A wolf speaking like a human!" "Should I tell you of something even more astonishing?" the wolf asked, "Muhammad Sallallahu Alayhi Wasallam is in Yathrib informing people of events that have occurred in the past." The shepherd then led his goats into Madinah, where he gathered them all in a corner of the town. He then went to Rasulullaah Sallallahu Alayhi Wasallam and related the incident to him.
Rasulullaah Sallallahu Alayhi Wasallam had the announcement 'As Salaatu Jaamiah"made and (when the people had gathered in the Masjid), he left (his room for the Masjid).
Rasulullaah Sallallahu Alayhi Wasallam then instructed the shepherd to relate the incident to the people and when he was done, Rasulullaah Sallallahu Alayhi Wasallam remarked:
"He has spoken the truth. I swear by the Being Who controls the life of Muhammad Sallallahu Alayhi Wasallam that Qiyaamah will not come until wild animals talk with humans, until people speak with the ends of their whips and their shoe straps and until a man's thighs inform him about what his wife had been doing in his absence." (Ahmad and Tirmidhi,)
A similar incident occurred with Hadhrat Abu Sufyaan bin Harb Radiallahu Anhu and Hadhrat Safwaan bin Umayyah Radiallahu Anhum. They saw a wolf chasing after a deer but as soon as the deer entered the precincts of the Haram, the wolf broke off the chase. When the two men expressed surprise at this, the wolf said, "More surprising than this is the fact that Muhammad bin Abdullaah Sallallahu Alayhi Wasallam is in Madinah calling you towards Jannah while you are calling him towards Jahannam." To this
Hadhrat Abu Sufyaan Radiallahu Anhu remarked, "I swear by Laat and Uzza that if you had to mention this in Makkah, the people would certainly forsake the city (and head for Madinah)." - Ibn Wahab, as quoted in AlBidaayah wan Nihaayah (Vo1.6 Pg.146).
Source: Hayaatus Sahaabah