Abu Dawud Book 36, Hadith Number 4790.

Narated By ‘Aisha, Ummul Mu’minin : Al-Miqdam ibn Shurayh, quoting his father, said: I asked ‘Aisha about living in the desert. She said: The Apostle of Allah (PBUH) used to go to the desert to these rivulets. Once he intended to go to the desert and he sent to me a she-camel from the camel of sadaqah which had not been used for riding so far. He said to me: ‘Aisha! show gentleness, for if gentleness is found in anything, it beautifies it and when it is taken out from anything it damages it.