Sahih Muslim Book 26, Hadith Number 5505.

Chapter : Plague, ill omen and magic.

This hadith has been reported on the authority of Ma’mar with the same chain of transmitters but with this addition: “Do you think that he would graze in the barren land but would abandon the green land? Would you not attribute it to be a failing on his part? He said: Yes. He said: Then proceed. And he moved on until he came to Medina. And he said to me: This is the right place, or he said: That is the destination if Allah so wills.” This hadith has been transmitted on the authority of ‘Abdullah b. Harith with a slight variation of wording.