I would sometimes ask one of the companions of the Prophet ﷺ about verses of the Quran which I knew better than he did, asking him only so that he might offer me something to eat. Whenever I asked Jafar bin Ubayy Talib, he would not answer me until he had taken me to his house, where he would say to his wife, "Asma, bring us something to eat." Once she had fed us, he would answer my question.Jafar loved the poor, used to sit with them, talked with them, and they talked with him. The Messenger of Allah ﷺ therefore gave him the nickname Father of the Poor.
حدثنا أبو سعيد الأشج حدثنا إسمعيل بن إبراهيم أبو يحيى التيمي حدثنا إبراهيم أبو إسحق المخزومي عن سعيد المقبري
إن كنت لأسأل الرجل من أصحاب النبي ﷺ عن الآيات من القرآن أنا أعلم بها منه ما أسأله إلا ليطعمني شيئا فكنت إذا سألت جعفر بن أبي طالب لم يجبني حتى يذهب بي إلى منزله فيقول لامرأته يا أسماء أطعمينا شيئا فإذا أطعمتنا أجابني وكان جعفر يحب المساكين ويجلس إليهم ويحدثهم ويحدثونه فكان رسول الله ﷺ يكنيه بأبي المساكين
[Its isnad is daif] Ibn Majah also narrated it, no. 4125, from Ashaj through him in abridged form. * Ibrahim Makhzumi is daif, and the origin of the hadith is found in Bukhari, no. 3708, from Saeed Maqburi through him in very abridged form.