"When one of you puts on sandals, he should first put in the right foot, and when he takes off he should take off the left one first. And he should wear both of them or take both off." (Using translation from Muslim 2097a)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِذَا انْتَعَلَ أَحَدُكُمْ فَلْيَبْدَأْ بِيَمِينِهِ وَإِذَا خَلَعَ فَلْيَبْدَأْ بِشِمَالِهِ وَقَالَ أَنْعِلْهُمَا جَمِيعًا أَوْ أَحْفِهِمَا جَمِيعًا