(a) It is narrated from Sayyiduna Bilal (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) wiped over his khuffs (leather socks), his forelock and his turban.
(b) This chain is hasan (good), and it is like the hadith of Sayyiduna al-Mughirah bin Shu'bah (may Allah be pleased with him) from the Prophet (peace and blessings be upon him) about wiping over the turban and the forelock together.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 289