Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) narrates: I went out on a cold morning. I was hungry at the time, and the severity of the cold had left me in a bad state. I took a woollen cloth that I had and wrapped it around my neck and over my chest so that it would give me some warmth. By Allah! There was nothing in my house that I could eat, nor was there anything in the house of the Prophet (peace and blessings be upon him) that he could send to me. I went out towards the outskirts of Madinah. I came to a Jew in his orchard and peeped in through a gap in the wall. He said: O Bedouin! What do you want? Would you be interested in drawing a bucket of water for one date? I said: Alright, open the orchard gate for me. He opened the gate for me and I went in. I would draw a bucket and he would give me a date, until my palm was full. I said: This is enough for me. I ate them, then drank some water, then came to the Prophet (peace and blessings be upon him) and sat with him in the mosque. He was there with a few of his Companions (may Allah be pleased with them). Meanwhile Mus'ab bin Umayr appeared before us, wearing a cloak covered in patches, although in Makkah he had been the young man who lived in the greatest luxury and the most comfortable life. When the Prophet (peace and blessings be upon him) saw him, he remembered the luxuries he used to live in and what his condition was now, and tears flowed from the eyes of the Prophet (peace and blessings be upon him) and he wept. Then the Prophet (peace and blessings be upon him) said: "Are you better off today, or will you be (better off) at the time when a bowl of bread and meat will be brought to one of you in the morning and another bowl in the evening, when he will wear one garment in the morning and another in the evening, and you will hang curtains over your houses just as they are hung over the Ka'bah?" We said: We will be in the best state at that time, because we will be free for worship. The Prophet (peace and blessings be upon him) said: "(No!) Rather, you are in a better state today." (Allamah al-Haythami says:) I say: Al-Tirmidhi recorded part of this narration.
Abu Ya'la recorded this narration; its chain contains a narrator who has not been named, and the rest of its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 18246