Negus presented to the Messenger of Allah ﷺ two black and simple socks. He put them on; then he performed ablution and wiped over them. Musaddad reported this tradition from Dulham b. Salih. Abu Dawud said: This tradition has been narrated by the people of Basrah alone.  

أَنَّ النَّجَاشِيَّ أَهْدَى إِلَى رَسُولِ اللَّهِ ﷺ خُفَّيْنِ أَسْوَدَيْنِ سَاذَجَيْنِ فَلَبِسَهُمَا ثُمَّ تَوَضَّأَ وَمَسَحَ عَلَيْهِمَا قَالَ مُسَدَّدٌ عَنْ دَلْهَمِ بْنِ صَالِحٍ  

It was narrated from Ibn Buraidah, from his father, that an-Najashi sent a pair of pure black Khuff as a gift to the Prophet ﷺ of, which he wore.  

أَنَّ النَّجَاشِيَّ أَهْدَى لِرَسُولِ اللَّهِ ﷺ خُفَّيْنِ سَاذَجَيْنِ أَسْوَدَيْنِ فَلَبِسَهُمَا  

An-Najashi gave the Prophet a gift of a pair of plain black leather socks. He put them on, then he (performed ablution and) wiped over them. (Using translation from Ibn Mājah 549)  

أَنَّ النَّجَاشِيَّ أَهْدَى إِلَى النَّبِيِّ ﷺ خُفَّيْنِ أَسْوَدَيْنِ سَاذَجَيْنِ فَلَبِسَهُمَا ثُمَّ تَوَضَّأَ وَمَسَحَ عَلَيْهِمَا  

"عَنْ بُرَيْدَةَ: أَنَّ النَّجَاشِى أَهْدَى إِلَى النَّبِىِّ ﷺ خُفَّيْنِ سَاذَجَيْنِ (*) أَسْودَيْنِ فَلَبِسَهُمَا، ثُمَّ تَوَضَّأَ وَمَسَحَ عَلَيْهِمَا".