Sunan At-Tirmidhi
Hadith #1145
Alqamah narrated that :Ibn Mas'ud was asked about a man who married a woman and he did not stipulate the dowry for her, and he did not enter into her until he died. So Ibn Mas'ud said: ""She gets the same dowry as other women, no less and no more, she has to observe the Iddah, and she gets inheritance."" So Ma'qil bin Sinan Al-Ashja'I stood and said: ""The Messenger of Allah judged the same as you have judged regarding Birwa bint Washiq, a woman of ours."" So Ibn Mas'ud was happy about that