Sahih Muslim Book 9, Hadith Number 3518.
Chapter: There is no maintenance allowance for one who has been given irrevocable divorce. ‘Ubaidullah b. ‘Abdullah b. ‘Utba reported that ‘Amr b. Hafs b. al-Mughira set out along with ‘Ali b. Abi Talib (Allah be pleased with him) to…