Yazid bin Hayan reported,

Yazid bin Hayyan said, "I set out together with Husayn bin Sabra and Umar bin Muslim to visit Zayd bin Arqam. When we sat down with him, Husayn said to him, 'You have been granted great good, Zayd. You saw the Messenger of Allah ﷺ, heard his words, fought alongside him, and prayed behind him. You have indeed been granted great good, Zayd. Tell us, Zayd, what you heard from the Messenger of Allah ﷺ.'Zayd replied, "Nephew, by Allah, I have grown old, my time has grown distant, and I have forgotten some of what I used to retain from the Messenger of Allah ﷺ. So whatever I tell you, accept it, and what I do not, do not press me for."Then he said, "One day the Messenger of Allah ﷺ stood up to address us at a watering place called Khumm, between Mecca and Medina. He praised Allah and extolled Him, then preached and gave admonition. Then he said, 'Now then, people, I am only a human being, and the messenger of my Lord is about to come to me and I shall respond. I am leaving among you two weighty things. The first is the Book of Allah, in which is guidance and light, so take hold of the Book of Allah and cling to it.' He urged us to follow the Book of Allah and encouraged us in it. Then he said, 'And the people of my household. I remind you of Allah regarding the people of my household. I remind you of Allah regarding the people of my household. I remind you of Allah regarding the people of my household.'"Husayn asked him, "Who are the people of his household, Zayd? Are his wives not part of his household?"Zayd replied, "His wives are part of his household, but the people of his household are those for whom charity is forbidden after him."Husayn asked, "And who are they?"Zayd answered, "They are the family of Ali, the family of Aqeel, the family of Jafar, and the family of Abbas."Husayn asked, "Is charity forbidden to all of them?"Zayd replied, "Yes."

عن يزيد بن حيان قال

انطلقت أنا وحصين بن سبرة وعمر بن مسلم إلى زيد بن أرقم، فلما جلسنا إليه قال له حصين: لقد لقيت يا زيد خيرا كثيرا، رأيت رسول الله ﷺ، وسمعت حديثه، وغزوت معه وصليت خلفه، لقد لقيت يا زيد خيرا كثيرا، حدثنا يا زيد ما سمعت من رسول الله ﷺ قال: يا ابن أخي والله لقد كبرت سني، وقدم عهدي ونسيت بعض الذي كنت أعي من رسول الله ﷺ، فما حدثتكم فاقبلوا وما لا فلا تكلفونيه. ثم قال: قام رسول الله ﷺ يوما فينا خطيبا بماء يدعى خما بين مكة والمدينة، فحمد الله، وأثنى عليه، ووعظ وذكر، ثم قال: أما بعد، ألا أيها الناس، فإنما أنا بشر يوشك أن يأتي رسول ربي فأجيب، وأنا تارك فيكم ثقلين، أولهما كتاب الله، فيه الهدى والنور فخذوا، بكتاب الله واستمسكوا به فحث على كتاب الله ورغب فيه ثم قال: وأهل بيتي أذكركم الله في أهل بيتي، أذكركم الله في أهل بيتي، أذكركم الله في أهل بيتي. فقال له حصين: ومن أهل بيته يا زيد؟ أليس نساؤه من أهل بيته؟ قال: نساؤه من أهل بيته ولكن أهل بيته ممن حرم الصدقة بعده. قال: ومن هم؟ قال: هم آل علي، وآل عقيل، وآل جعفر، وآل عباس. قال: كل هؤلاء حرم الصدقة؟ قال: نعم.