Bulugh al-Maram
Book 8, Hadith 78
He was asked about a man who had married a woman and had not fixed a dowry for her. And he did not consummate (the marriage) with her till he died. Ibn Mas'ud replied, "She should receive a dowry similar to what the women of her community receive without decrease or increase. She must observe the 'Iddah period (of waiting before re-marrying and is entitled to a share of the inheritance." Ma'qil bin Sinan al-Ashja'i then got up and said, "Allah's Messenger (ﷺ) ruled the same as your ruling regarding Birwa', daughter of Washiq, a woman of our tribe." Ibn Mas'ud was delighted with it.[Reported by Ahmad and al-Arba'a. at-Tirmidhi graded it Sahih (authentic), while a group (of Hadith scholars) graded it Hasan (good)].Narrated Jabir bin 'Abdullah (RA): The Prophet (ﷺ) said: "If anyone gives as a dowry to a woman some flour or dates, he has made her lawful for himself."[Abu Dawud reported it, and indicated that the stronger opinion is that it is Mawquf (saying of a Companion)].