Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said that Sayyiduna Umar (may Allah be pleased with him) saw a striped silk robe near the door of the mosque and said: O Messenger of Allah, if only you (peace and blessings be upon him) would buy it and wear it for Friday and for the delegations! He (peace and blessings be upon him) said: "This is worn only by those who have no share in the Hereafter." Then some robes came to him (peace and blessings be upon him), and he (peace and blessings be upon him) gave one robe to Sayyiduna Umar bin al-Khattab (may Allah be pleased with him). Sayyiduna Umar (may Allah be pleased with him) said: O Messenger of Allah, you have clothed me in a robe, although you said what you said about the robe of Utarid? He (peace and blessings be upon him) said: "I did not give it to you to wear." So Sayyiduna Umar (may Allah be pleased with him) gave it to his polytheist brother who was in Makkah.
Imam al-Shafi'i (may Allah have mercy on him) said that Allah Almighty says: "And they give food, out of love for Allah, to the poor, the orphan and the captive." [Surah al-Insan: 8]
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18332