Musannaf Ibn Abi Shaybah 22955 — Selling umm walad slave women

It is narrated from Zayd bin Wahb that a man in the neighbourhood died, and he had an umm walad. Sayyiduna al-Walid bin Uqbah (may Allah be pleased with him) said: Sell her. We came to Sayyiduna Ibn Mas'ud (may Allah be pleased with him) and asked him. He (may Allah be pleased with him) said: If you must do so, then place this slave woman in her son's share.