Sunan Ibn Majah · Hadith 1966
The Chapters on Marriage - كتاب النكاح
حدثنا أبو بكر بن أبي شيبة، حدثنا عبد الرحمن بن مهدي، عن سفيان، عن منصور، عن إبراهيم، عن علقمة، عن عبد الله، مثله .
It was narrated from Masruq that: Abdullah was asked about a man who married a woman and died without having consummated the marriage with her, nor stipulating the dowry. Abdullah said: “The dowry is hers, and the inheritance id hers and she has to observe the waiting period.” Ma'qil bin Sinan Al-Ashja'I said: “I saw the Messenger of Allah pass a similar ruling concerning Birwa' bint Washiq.” (Sahih)Another chain from 'Alqamah, from Abdullah, with similar wording.
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).