609 – Ibn ʿUmar (may Allah be pleased with them both) narrated: “The Messenger of Allah ﷺ was asked about the clothes an individual in ihram may wear. He replied: ‘He must not wear a shirt, nor turbans, nor trousers, nor burnooses, nor leather socks. But if someone cannot find a pair of sandals, let him wear the leather socks and cut them so that they sit below the ankles. And do not wear any garment that has been touched by saffron or wars dye.’” Agreed upon; this wording is that of Muslim. (1)

Glossary of ḥadith terms:
• “He must not wear … etc.” Al-Nawawī said: The scholars regard this statement as a paragon of eloquence and force, for the items one may wear are limitless, whereas the prohibited items are few. The Prophet ﷺ therefore listed the forbidden garments, leaving everything else permissible by default.
• “lā yalbas” (he must not wear): derived from lubs (to dress). The more common grammatical reading takes the verb in the indicative as a declarative statement; it may also be read in the jussive if lā is understood as prohibitive.
• qamīṣ (pl. qumuṣ, qumṣān, aqmiṣah): a fitted, sewn garment shaped to the body—i.e., a shirt.
• ʿamāʾim (sing. ʿimāmah, with a kasrah on the ʿayn): cloth wrapped and wound around the head; the verbs iʿtamma and taʿammama share this meaning.
• sarāwīlāt (sing. sirwāl): may be treated as masculine or feminine. Al-Aṣmaʿī maintained that only the feminine usage is attested. The word is a Persian loan that has been Arabised. قال al-ʿAynī: “The Arabs, when…"