Sunan an-Nasa'i, Volume 3, Book 24, Hadith 2672 (DarusSalam) ⓘ
It was narrated that Ibn 'Abbas said; "I heard the Prophet delivering a khutbah and he said: 'Pants (are allowed) for one who cannot find an Izar, and Khuffs for one who cannot find sandals to wear in Ihram.;;
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا حَمَّادٌ، عَنْ عَمْرٍو، عَنْ جَابِرِ بْنِ زَيْدٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَخْطُبُ وَهُوَ يَقُولُ " السَّرَاوِيلُ لِمَنْ لاَ يَجِدُ الإِزَارَ وَالْخُفَّيْنِ لِمَنْ لاَ يَجِدُ النَّعْلَيْنِ " . لِلْمُحْرِمِ .
also referenced under: Hadith 2671 (Reference) & Book 24, Hadith 0 (In-Book)