Sahih Bukhari Volume 009, Book 085, Hadith Number 083.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 85. Saying Something under Compulsion (Ikraah)
Narrated By 'Abdullah bin 'Umar : Allah's Apostle said, "A Muslim is a brother of another Muslim. So he should neither oppress him nor hand him over to an oppressor. And whoever fulfilled the needs of his brother, Allah will fulfill his needs."