Bulugh al-Maram 58
Narrated Mughira bin Shu’ba (rad):
Once I was in the company of the Prophet (ﷺ), he then performed ablution and I dashed to take off his socks. He said, “Leave them for I had put them on after performing ablution”. So he wiped over them [Agreed Upon].
عَنْ اَلْمُغِيرَةِ بْنِ شُعْبَةَ ‏- رضى الله عنه ‏- قَالَ: { كُنْتُ مَعَ اَلنَّبِيِّ ‏- صلى الله عليه وسلم ‏-فَتَوَضَّأَ, فَأَهْوَيْتُ لِأَنْزِعَ خُفَّيْهِ, فَقَالَ: 
"دَعْهُمَا, فَإِنِّي أَدْخَلْتُهُمَا طَاهِرَتَيْنِ" فَمَسَحَ عَلَيْهِمَا }  مُتَّفَقٌ عَلَيْه ِ  1‏ .‏‏1 ‏- صحيح.‏ رواه البخاري (206)‏، ومسلم (274)‏ (79)‏.‏