Ubaydullah bin Abdullah reported,

His father wrote to Umar bin Abdullah bin Arqam Zuhri, instructing him to visit Subayah bint Harith Aslamiyyah and ask her about her story and what the Messenger of Allah ﷺ told her when she sought his ruling. Umar bin Abdullah then wrote to Abdullah bin Utbah informing him that Subayah had told him that she had been married to Saad bin Khawla, who was from Banu Amir bin Luayy and one of those who witnessed Badr. Her husband died during the Farewell Pilgrimage while she was pregnant, and not long after his death she gave birth.When she had recovered from her postnatal bleeding, she adorned herself for suitors. Abu Sanabil bin Bakak, a man from Banu Abd al-Dar, came in to her and said, "Why do I see you dressed up? Perhaps you want to marry. By Allah, you cannot marry until four months and ten days have passed."Subayah said, "When he said that to me, I gathered my clothes about me at nightfall and went to the Messenger of Allah ﷺ and asked him about it. He ruled that I had become lawful to marry the moment I gave birth, and he told me to marry if I wished."

أخبرنا يونس بن عبد الأعلى قال حدثنا ابن وهب قال أخبرني يونس عن ابن شهاب أن

عبيد الله بن عبد الله حدثه

أن أباه كتب إلى عمر بن عبد الله بن أرقم الزهري يأمره أن يدخل على سبيعة بنت الحارث الأسلمية فيسألها حديثها وعما قال لها رسول الله ﷺ حين استفتته فكتب عمر بن عبد الله إلى عبد الله بن عتبة يخبره أن سبيعة أخبرته أنها كانت تحت سعد بن خولة وهو من بني عامر بن لؤي وكان ممن شهد بدرا فتوفي عنها زوجها في حجة الوداع وهي حامل فلم تنشب أن وضعت حملها بعد وفاته فلما تعلت من نفاسها تجملت للخطاب فدخل عليها أبو السنابل بن بعكك رجل من بني عبد الدار فقال لها ما لي أراك متجملة لعلك تريدين النكاح إنك والله ما أنت بناكح حتى تمر عليك أربعة أشهر وعشرا قالت سبيعة فلما قال لي ذلك جمعت علي ثيابي حين أمسيت فأتيت رسول الله ﷺ فسألته عن ذلك فأفتاني بأني قد حللت حين وضعت حملي وأمرني بالتزويج إن بدا لي