Sayyiduna Anas bin Malik (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) permitted Sayyiduna Abd al-Rahman bin Awf and Sayyiduna al-Zubayr bin al-Awwam (may Allah be pleased with them both) to wear silk shirts because of itching.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6074
Sayyiduna Anas (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) permitted Abd al-Rahman bin Awf and al-Zubayr bin al-Awwam (may Allah be pleased with them both) to wear silk because of itching.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6075
Sayyiduna Anas (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) permitted Abd al-Rahman bin Awf and al-Zubayr bin al-Awwam (may Allah be pleased with them both) to wear silk because of itching.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6076
Sayyiduna Anas bin Malik (may Allah be pleased with him) said that the Prophet (peace and blessings be upon him) permitted Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) to wear a silk shirt while travelling because of an itch he used to feel on his body, and Sayyiduna al-Zubayr bin al-Awwam (may Allah be pleased with him) as well.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6077
(a) Sayyiduna Anas bin Malik (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) permitted Abd al-Rahman bin Awf and al-Zubayr bin al-Awwam (may Allah be pleased with them both) to wear silk shirts while travelling because of itching, or because of some other ailment.
(b) Qatadah (may Allah have mercy on him) said that the Prophet (peace and blessings be upon him) gave permission to wear silk shirts during a campaign.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6078
Abd al-Rahman bin al-Qasim narrates from his father that Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) had a silk shirt which he used to wear beneath his clothes. Sayyiduna Umar (may Allah be pleased with him) asked: What is this? He said: I wore it in the presence of one who was better than you.
This hadith is munqati' (its chain is broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الخوف / 6079